51736564 has 24 divisors (see below), whose sum is σ = 100166976. Its totient is φ = 23184000.

The previous prime is 51736507. The next prime is 51736579. The reversal of 51736564 is 46563715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5157 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (4173624).

Almost surely, 2^51736564 is an apocalyptic number.

It is an amenable number.

51736564 is a deficient number, since it is larger than the sum of its proper divisors (48430412).

51736564 is a wasteful number, since it uses less digits than its factorization.

51736564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16647 (or 16645 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 51736564 is about 7192.8133577898. The cubic root of 51736564 is about 372.6197419946.

The spelling of 51736564 in words is "fifty-one million, seven hundred thirty-six thousand, five hundred sixty-four".