A pound of $50 bills is worth $22,700. Every U.S. banknote, regardless of denomination, weighs approximately 1 gram. Since there are 454 grams in a pound, a pound of any U.S. bill is worth 454 times its face value.
Since U.S. banknotes have a consistent weight of 1 gram, they can be used as improvised scale calibration weights.
The largest denomination ever printed by the U.S. Bureau of Engraving and Printing was the $100,000 Gold Certificate, although it was only printed for transactions between Federal Reserve banks.
U.S. currency paper is composed of 75 percent cotton and 25 percent linen, and it is durable enough to withstand about 4,000 double folds before tearing.