252890431 has 2 divisors, whose sum is σ = 252890432. Its totient is φ = 252890430.

The previous prime is 252890413. The next prime is 252890471. The reversal of 252890431 is 134098252.

Together with previous prime (252890413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252890431 - 2²⁵ = 219335999 is a prime.

It is a super-2 number, since 2×252890431² = 127907140182731522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252890471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126445215 + 126445216.

It is an arithmetic number, because the mean of its divisors is an integer number (126445216).

Almost surely, 2^252890431 is an apocalyptic number.

252890431 is a deficient number, since it is larger than the sum of its proper divisors (1).

252890431 is an equidigital number, since it uses as much as digits as its factorization.

252890431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 252890431 is about 15902.5290755905. The cubic root of 252890431 is about 632.3790379377.

The spelling of 252890431 in words is "two hundred fifty-two million, eight hundred ninety thousand, four hundred thirty-one".