Hecho general: 5479 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 5479 is the number of bipartite graphs with 10 vertices.
Trivia: 5479 is an unremarkable number.
Fecha histórica: December 31st is the day in 1695 that a window tax is imposed in England, causing many householders to brick up windows to avoid the tax.