Fatto generale: 753 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 753 is the smallest number whose cube contains 4 consecutive 7's.
Trivia: 753 is an unremarkable number.
Data storica: January 22nd is the day in 2002 that Kmart becomes the largest retailer in United States history to file for Chapter 11 bankruptcy protection.