51996504 has 32 divisors (see below), whose sum is σ = 148561920. Its totient is φ = 14856096.

The previous prime is 51996493. The next prime is 51996509. The reversal of 51996504 is 40569915.

51996504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51996509) 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 7 ways as a sum of consecutive naturals, for example, 154584 + ... + 154919.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2^51996504 is an apocalyptic number.

It is an amenable number.

51996504 is an abundant number, since it is smaller than the sum of its proper divisors (96565416).

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

51996504 is a wasteful number, since it uses less digits than its factorization.

51996504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309519 (or 309515 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 51996504 is about 7210.8601428678. The cubic root of 51996504 is about 373.2427508411.

The spelling of 51996504 in words is "fifty-one million, nine hundred ninety-six thousand, five hundred four".