52631439 has 24 divisors (see below), whose sum is σ = 86438448. Its totient is φ = 28304640.

The previous prime is 52631417. The next prime is 52631443. The reversal of 52631439 is 93413625.

It is not a de Polignac number, because 52631439 - 2⁵ = 52631407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52631239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8032 + ... + 13029.

It is an arithmetic number, because the mean of its divisors is an integer number (3601602).

Almost surely, 2^52631439 is an apocalyptic number.

52631439 is a deficient number, since it is larger than the sum of its proper divisors (33807009).

52631439 is a wasteful number, since it uses less digits than its factorization.

52631439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21095 (or 21088 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 52631439 is about 7254.7528558870. The cubic root of 52631439 is about 374.7558446251.

The spelling of 52631439 in words is "fifty-two million, six hundred thirty-one thousand, four hundred thirty-nine".