252990317 has 8 divisors (see below), whose sum is σ = 264162624. Its totient is φ = 241832448.

The previous prime is 252990307. The next prime is 252990337. The reversal of 252990317 is 713099252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252990317 - 2⁸ = 252990061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252990307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48173 + ... + 53165.

It is an arithmetic number, because the mean of its divisors is an integer number (33020328).

Almost surely, 2^252990317 is an apocalyptic number.

It is an amenable number.

252990317 is a deficient number, since it is larger than the sum of its proper divisors (11172307).

252990317 is a wasteful number, since it uses less digits than its factorization.

252990317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 252990317 is about 15905.6693351773. The cubic root of 252990317 is about 632.4622854503.

The spelling of 252990317 in words is "two hundred fifty-two million, nine hundred ninety thousand, three hundred seventeen".