52931904 has 56 divisors (see below), whose sum is σ = 143853408. Its totient is φ = 17164800.

The previous prime is 52931899. The next prime is 52931927. The reversal of 52931904 is 40913925.

It is a super-2 number, since 2×52931904² = 5603572922130432, which contains 22 as substring.

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, 3379 + ... + 10829.

Almost surely, 2^52931904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52931904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71926704).

52931904 is an abundant number, since it is smaller than the sum of its proper divisors (90921504).

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

52931904 is a wasteful number, since it uses less digits than its factorization.

52931904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503 (or 7493 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 52931904 is about 7275.4315335930. The cubic root of 52931904 is about 375.4676334969.

It can be divided in two parts, 52931 and 904, that added together give a palindrome (53835).

The spelling of 52931904 in words is "fifty-two million, nine hundred thirty-one thousand, nine hundred four".