Hecho general: 15495 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 15495 is an unremarkable number.
Trivia: 15495 is an uninteresting number.
Fecha histórica: June 3rd is the day in 1950 that First successful ascent of an Eight-thousander; Annapurna is summited by Maurice Herzog and Louis Lachenal.