It's about 20,000,000 times as heavy as a Human Brain.
In other words, 25,000 tonnes is 18,500,000 times the weight of a Human Brain, and the weight of a Human Brain is 0.00000005410 times that amount.(adult)
The average weight of an adult human brain is between 0.00135 tonnes. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
It's about 25,000,000 times as heavy as a liter of Water.
In other words, 25,000 tonnes is 24,999,300 times the weight of a liter of Water, and the weight of a liter of Water is 0.000000040001120 times that amount.(fresh; 4° C / 39.2° F; maximum density)
Contrary to popular belief, 1 liter (0.0.264172052358148 gal) of water at 4° C / 39.2° F (its point of maximum density) weighs 0.001000028 tonnes rather than 1 kg exactly. The total volume of water on the planet Earth is about 13,590,000,000,000,000,000 (13.59 quntillion) L (3,590,000,000,000,000,000 gallons).
It's about 40,000,000 times as heavy as a Basketball.
In other words, 25,000 tonnes is 40,084,047.670 times the weight of a Basketball, and the weight of a Basketball is 0.000000024947580350 times that amount.(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 0.00062368950875 tonnes. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about 60,000,000 times as heavy as a Football (Soccer).
In other words, 25,000 tonnes is 58,000,000 times the weight of a Football (Soccer), and the weight of a Football (Soccer) is 0.0000000170 times that amount.(a.k.a. Soccer, a.k.a. Association Football) (FIFA Law 2 specification)
According to FIFA's Law of the Game number 2, a football must weigh between 0.00041 tonnes and 0.00045 tonnes. An artifact on display at the Smith Art Gallery in Museum in Stirling, Scotland is said to be the world's oldest football and is about one-third to one-half the size of a modern football.
It's about 60,000,000 times as heavy as a Football (American).
In other words, 25,000 tonnes is 60,817,175.775140 times the weight of a Football (American), and the weight of a Football (American) is 0.00000001644272341250 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.00039689332375 tonnes and 0.000425242846875 tonnes. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
It's about 70,000,000 times as heavy as a Can of Soup.
In other words, 25,000 tonnes is 71,000,000 times the weight of a Can of Soup, and the weight of a Can of Soup is 0.0000000140 times that amount.(for Campbell''s Condensed Tomato Soup, 317.9 ml)
A can of Campbell''s Tomato Soup weighs 0.00035 tonnes. Cans have been used to store soup and other foods since their invention in 1913, but a dedicated can opener was not developed until cans began to use thinner materials — prior to that time, cans were usually opened using various blunt instruments and tools.
It's about 80,000,000 times as heavy as a Human Heart.
In other words, 25,000 tonnes is 81,000,000 times the weight of a Human Heart, and the weight of a Human Heart is 0.0000000120 times that amount.(human; adult)
The average human heart weighs about 0.00031 tonnes. Each minute, the heart pumps between 10 and 20 liters (3 to 5 gallons) of blood through its chambers.