Your number, one digit away
One digit away
One change could reach Extreme.
Your number
510,521
Distinct · Top 20.1%
Position 4: 5 → 1 · +202 points.
Gained: Digit sum 10, Ascending segment, Prime, Triple digit, Happy number.
Lost: Digit sum 14, Semiprime, Double pair.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.