Fait mathématique: 7549 is the largest known prime p where no numbers of the form p-n^{2} are prime.
Culture générale: 7549 is an uninteresting number.
Date historique: August 31st is the day in 1986 that the Soviet passenger liner Admiral Nakhimov sinks in the Black Sea after colliding with the bulk carrier Pyotr Vasev, killing 423.