Mathematical fact: 7269 is a value of n for which n and 2n together use each digit 1-9 exactly once.
Trivia: 7269 is an unremarkable number.
Historical date: November 25th is the day in 1343 that a tsunami, caused by the earthquake in the Tyrrhenian Sea, devastates Naples (Italy) and the Maritime Republic of Amalfi, among other places.