52831404 has 18 divisors (see below), whose sum is σ = 133546140. Its totient is φ = 17610456.

The previous prime is 52831369. The next prime is 52831421. The reversal of 52831404 is 40413825.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×52831404² = 5582314497222432, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 733734 + ... + 733805.

It is an arithmetic number, because the mean of its divisors is an integer number (7419230).

Almost surely, 2^52831404 is an apocalyptic number.

It is an amenable number.

52831404 is an abundant number, since it is smaller than the sum of its proper divisors (80714736).

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

52831404 is a wasteful number, since it uses less digits than its factorization.

52831404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467549 (or 1467544 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 52831404 is about 7268.5214452459. The cubic root of 52831404 is about 375.2298537506.

It can be divided in two parts, 52831 and 404, that added together give a palindrome (53235).

The spelling of 52831404 in words is "fifty-two million, eight hundred thirty-one thousand, four hundred four".