Step 1: Divide the number into separate digits:
57569 => 5 7 5 6 9
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
5 to 7 = 2
7 to 5 = 2
5 to 6 = 1
6 to 9 = 3
9 to 5 = 4
Step 3: Combine the filters to a string:
2 2 1 3 4 = 22134