52631239 has 2 divisors, whose sum is σ = 52631240. Its totient is φ = 52631238.

The previous prime is 52631237. The next prime is 52631261. The reversal of 52631239 is 93213625.

52631239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52631239 - 2¹ = 52631237 is a prime.

Together with 52631237, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52631239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52631237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26315619 + 26315620.

It is an arithmetic number, because the mean of its divisors is an integer number (26315620).

Almost surely, 2^52631239 is an apocalyptic number.

52631239 is a deficient number, since it is larger than the sum of its proper divisors (1).

52631239 is an equidigital number, since it uses as much as digits as its factorization.

52631239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 52631239 is about 7254.7390718068. The cubic root of 52631239 is about 374.7553699325.

The spelling of 52631239 in words is "fifty-two million, six hundred thirty-one thousand, two hundred thirty-nine".