Fait général: 75422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 75422 is a boring number.
Culture générale: 75422 is an uninteresting number.
Date historique: July 1st is the day in 1881 that General Order 70, the culmination of the Cardwell and Childers reforms of the British Army, comes into effect.