It's about one-seventy-thousandth as heavy as The CN Tower
In other words, 25,490,000 grains is 0.0000140080 times the weight of The CN Tower, and the weight of The CN Tower is 71,388 times that amount.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada)
The CN Tower weighs approximately 1,819,600,000,000 grains. The Tower is home to the world's highest glass floor — a viewing area that allows visitors to look straight down 342 m (1,120 ft) to the ground below.
It's about 80,000 times as heavy as a Mouse
In other words, 25,490,000 grains is 79,000 times the weight of a Mouse, and the weight of a Mouse is 0.0000130 times that amount.(a.k.a. "House mouse", Mus musculus) (adult)
The weight of a mouse is typically an average of 320 grains. While most mice typically live two to three years, the Methuselah Mouse Prize — an award administered by a non-profit organization which advances aging-related research — was once awarded to a team of scientists whose research resulted in a mouse living just under five years.
It's about 100,000 times as heavy as a Compact disc
In other words, 25,490,000 grains is 110,000 times the weight of a Compact disc, and the weight of a Compact disc is 0.00000910 times that amount.(a.k.a. CD)
A compact disc typically weighs 230 grains. Data is stored on CDs by encoding into the track a series of tiny pits — each between 3.5 and 850 µm (0.00014 and 0.033 in) in length.
It's about one-one-hundred-thousandth as heavy as The Sears Tower
In other words, 25,490,000 grains is 0.0000081850 times the weight of The Sears Tower, and the weight of The Sears Tower is 122,200 times that amount.(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 3,114,000,000,000 grains. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.
It's about 150,000 times as heavy as a Battery (AAA)
In other words, the weight of a Battery (AAA) is 0.00000710 times 25,490,000 grains.(Alkaline)
An "AAA" size battery weighs 190 grains. Batteries are named by the American National Standards Institute (ANSI) Committee C18 and AAA batteries were given their name because they were smaller than the "AA" and "A" size batteries which were invented first.
It's about one-two-hundred-thousandth as heavy as The Empire State Building
In other words, 25,490,000 grains is 0.000004990 times the weight of The Empire State Building, and the weight of The Empire State Building is 200,000 times that amount.(New York City, New York)
The Empire State Building weighs approximately 5,110,000,000,000 grains. About 4% of the building's weight is its 6,000 cu. m (200,000 cu. ft) of limestone façade.
It's about 250,000 times as heavy as an Eye (Human)