Hecho general: 5370 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 5370 is an uninteresting number.
Trivia: 5370 is a boring number.
Fecha histórica: September 13th is the day in 2007 that the Declaration on the Rights of Indigenous Peoples is adopted by the United Nations General Assembly.