Fait général: 23544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 23544 is a boring number.
Culture générale: 23544 is an unremarkable number.
Date historique: June 16th is the day in 1745 that Sir William Pepperell captures the French Fortress of Louisbourg in Louisbourg, Nova Scotia during the War of the Austrian Succession.