2772225

Appears in sequences

• Squares composed of digits {2, 5, 7}.at n=5A030485
• n is odd and divisible by number of divisors of n and sum of digits of n.at n=23A057530
• Perfect powers using only prime digits and 1.at n=31A083806
• Squares using only the prime digits (2,3,5,7).at n=6A191486
• Numbers that have exactly 10 representations as a k-gonal number, P(n,k) = n*((k-2)*n - (k-4))/2, k and n >= 3.at n=12A321160