51764772 has 12 divisors (see below), whose sum is σ = 120784496. Its totient is φ = 17254920.

The previous prime is 51764753. The next prime is 51764773. The reversal of 51764772 is 27746715.

51764772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 51764772.

It is not an unprimeable number, because it can be changed into a prime (51764773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156854 + ... + 2156877.

Almost surely, 2^51764772 is an apocalyptic number.

It is an amenable number.

51764772 is an abundant number, since it is smaller than the sum of its proper divisors (69019724).

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

51764772 is a wasteful number, since it uses less digits than its factorization.

51764772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313738 (or 4313736 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 51764772 is about 7194.7739366849. The cubic root of 51764772 is about 372.6874500602.

The spelling of 51764772 in words is "fifty-one million, seven hundred sixty-four thousand, seven hundred seventy-two".