Fait général: 25504 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 25504 is an uninteresting number.
Culture générale: 25504 is a boring number.
Date historique: October 28th is the day in 1929 that Black Monday, a day in the Wall Street Crash of 1929, which also saw major stock market upheaval.