Your number, one digit away
One digit away
One change could reach Singular.
Your number
5,521
Extreme · Top 0.65%
Position 1: 5 → 1 · +199 points.
Gained: Perfect square, Digit sum 9, Harshad number, Happy number.
Lost: Digit sum 13, Prime.
35 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.