Step 1: Divide the number into separate digits:
27415 => 2 7 4 1 5
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
2 to 7 = 5
7 to 4 = 3
4 to 1 = 3
1 to 5 = 4
5 to 2 = 3
Step 3: Combine the filters to a string:
5 3 3 4 3 = 53343