Bluebulb Projects' The Measure of Things presents:
530,000 is about six-and-a-half times the number of Seats in Lambeau Field.
In other words, it's 6.5647 times the count of Seats in Lambeau Field, and the count of Seats in Lambeau Field is 0.15233 times that amount.
(2014 figures) (a.k.a. City Stadium, a.k.a. New City Stadium, a.k.a. Titletown USA, a.k.a. The Frozen Tundra, a.k.a. The Shrine of Pro Football) (Green Bay, Wisconsin)