52087904 has 24 divisors (see below), whose sum is σ = 111871368. Its totient is φ = 23676160.

The previous prime is 52087879. The next prime is 52087913. The reversal of 52087904 is 40978025.

It is a happy number.

It is a super-2 number, since 2×52087904² = 5426299486226432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73637 + ... + 74340.

It is an arithmetic number, because the mean of its divisors is an integer number (4661307).

Almost surely, 2^52087904 is an apocalyptic number.

It is an amenable number.

52087904 is an abundant number, since it is smaller than the sum of its proper divisors (59783464).

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

52087904 is a wasteful number, since it uses less digits than its factorization.

52087904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147998 (or 147990 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 52087904 is about 7217.1950229989. The cubic root of 52087904 is about 373.4613194974.

The spelling of 52087904 in words is "fifty-two million, eighty-seven thousand, nine hundred four".