General fact: 47751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 47751 is an uninteresting number.
Trivia: 47751 is an unremarkable number.
Historical date: September 26th is the day in 2002 that the overcrowded Senegalese ferry MV Joola capsizes off the coast of The Gambia killing more than 1,000.