Fatto generale: 2496 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2496 is the number of 3-connected planar maps with 17 edges.
Trivia: 2496 is an unremarkable number.
Data storica: October 31st is the day in 1999 that Yachtsman Jesse Martin returns to Melbourne after 11 months of circumnavigating the world, solo, non-stop and unassisted.