51456264 has 16 divisors (see below), whose sum is σ = 128640720. Its totient is φ = 17152080.

The previous prime is 51456257. The next prime is 51456277. The reversal of 51456264 is 46265415.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071982 + ... + 1072029.

It is an arithmetic number, because the mean of its divisors is an integer number (8040045).

Almost surely, 2^51456264 is an apocalyptic number.

It is an amenable number.

51456264 is an abundant number, since it is smaller than the sum of its proper divisors (77184456).

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

51456264 is a wasteful number, since it uses less digits than its factorization.

51456264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144020 (or 2144016 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 51456264 is about 7173.3021684577. The cubic root of 51456264 is about 371.9455926905.

The spelling of 51456264 in words is "fifty-one million, four hundred fifty-six thousand, two hundred sixty-four".