505550

Appears in sequences

• Numbers k such that k and k^2 use only the digits 0, 2, 5, 7 and 8.at n=51A136916
• Numbers k such that k and k^2 use only the digits 0, 2, 5 and 8.at n=23A136918
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 8 and 9.at n=48A136919
• Numbers in which each digit equals the sum (mod 10) of the other digits.at n=30A226468