Step 1: Divide the number into separate digits:
85727 => 8 5 7 2 7
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
8 to 5 = 3
5 to 7 = 2
7 to 2 = 5
2 to 7 = 5
7 to 8 = 1
Step 3: Combine the filters to a string:
3 2 5 5 1 = 32551