51022656 has 56 divisors (see below), whose sum is σ = 150002240. Its totient is φ = 17006976.

The previous prime is 51022651. The next prime is 51022681. The reversal of 51022656 is 65622015.

51022656 is a `hidden beast` number, since 5 + 1 + 0 + 2 + 2 + 656 = 666.

It is a super-2 number, since 2×51022656² = 5206622850588672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51022651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13036 + ... + 16491.

Almost surely, 2^51022656 is an apocalyptic number.

It is an amenable number.

51022656 is an abundant number, since it is smaller than the sum of its proper divisors (98979584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51022656 is a wasteful number, since it uses less digits than its factorization.

51022656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29548 (or 29532 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51022656 is about 7143.0144896955. The cubic root of 51022656 is about 370.8978826434.

The spelling of 51022656 in words is "fifty-one million, twenty-two thousand, six hundred fifty-six".