52631591 has 2 divisors, whose sum is σ = 52631592. Its totient is φ = 52631590.

The previous prime is 52631573. The next prime is 52631603. The reversal of 52631591 is 19513625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52631591 - 2¹⁴ = 52615207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52631531) by changing a digit.

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 as a sum of consecutive naturals, namely, 26315795 + 26315796.

It is an arithmetic number, because the mean of its divisors is an integer number (26315796).

Almost surely, 2^52631591 is an apocalyptic number.

52631591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52631591 is an equidigital number, since it uses as much as digits as its factorization.

52631591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 52631591 is about 7254.7633317704. The cubic root of 52631591 is about 374.7562053907.

The spelling of 52631591 in words is "fifty-two million, six hundred thirty-one thousand, five hundred ninety-one".