Bluebulb Projects' The Measure of Things presents:
5,500 is about two-and-a-half times the number of Steps in the Sears Tower.
In other words, it's 2.6080 times the count of Steps in the Sears Tower, and the count of Steps in the Sears Tower is 0.38340 times that amount.
(a.k.a. Willis Tower) (Chicago, Illinois) (steps per stairwell)