Hecho general: 65939 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 65939 is an unremarkable number.
Trivia: 65939 is an uninteresting number.
Fecha histórica: July 13th is the day in 1985 that the Live Aid benefit concert takes place in London and Philadelphia, as well as other venues such as Sydney and Moscow.