Hecho general: 52047 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 52047 is an unremarkable number.
Trivia: 52047 is an uninteresting number.
Fecha histórica: July 1st is the day in 1968 that the Nuclear non-proliferation treaty is signed in Washington, D.C., London and Moscow by sixty-two countries.