Bluebulb Projects' The Measure of Things presents:
570 is about two-thirds the number of Population of Vatican City
In other words, it's 0.6770 times the count of Population of Vatican City, and the count of Population of Vatican City is 1.480 times that amount.
(a.k.a. Vatican City State, a.k.a. Stato della Città del Vaticano
, a.k.a. Status Civitatis Vaticanae
) (Rome, Italy) (2014 estimates; permanent residents only)