Fait mathématique: 82751 is an uninteresting number.
Culture générale: 82751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: July 25th is the day in 1261 that the city of Constantinople is recaptured by Nicaean forces under the command of Alexios Strategopoulos, re-establishing the Byzantine Empire.