Your number, one digit away

One digit away

One change could reach Extreme.

Your number

51,321

Exceptional · Top 2.91%

Best one-digit neighbour

21,321

Extreme · Top 0.11%

Position 1: 5 → 2 · +258 points.

Gained: Triangular number, Digit sum 9, 3 distinct digits, Harshad number, Double pair, Happy number.

Lost: Digit sum 12, Semiprime, 4 distinct digits, Repeated digit.

44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.