51975504 has 60 divisors (see below), whose sum is σ = 166242336. Its totient is φ = 14849856.

The previous prime is 51975487. The next prime is 51975529. The reversal of 51975504 is 40557915.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24774 + ... + 26789.

Almost surely, 2^51975504 is an apocalyptic number.

It is an amenable number.

51975504 is an abundant number, since it is smaller than the sum of its proper divisors (114266832).

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

51975504 is a wasteful number, since it uses less digits than its factorization.

51975504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51584 (or 51575 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 51975504 is about 7209.4038588499. The cubic root of 51975504 is about 373.1924964803.

It can be divided in two parts, 5197 and 5504, that added together give a palindrome (10701).

The spelling of 51975504 in words is "fifty-one million, nine hundred seventy-five thousand, five hundred four".