252431085 has 16 divisors (see below), whose sum is σ = 404103744. Its totient is φ = 134558592.

The previous prime is 252431077. The next prime is 252431099. The reversal of 252431085 is 580134252.

It is not a de Polignac number, because 252431085 - 2³ = 252431077 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 37594 + ... + 43796.

It is an arithmetic number, because the mean of its divisors is an integer number (25256484).

Almost surely, 2^252431085 is an apocalyptic number.

It is an amenable number.

252431085 is a deficient number, since it is larger than the sum of its proper divisors (151672659).

252431085 is a wasteful number, since it uses less digits than its factorization.

252431085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 252431085 is about 15888.0799658108. The cubic root of 252431085 is about 631.9959249390.

The spelling of 252431085 in words is "two hundred fifty-two million, four hundred thirty-one thousand, eighty-five".