252972715 has 4 divisors (see below), whose sum is σ = 303567264. Its totient is φ = 202378168.

The previous prime is 252972701. The next prime is 252972721. The reversal of 252972715 is 517279252.

252972715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252972715 - 2²³ = 244584107 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25297267 + ... + 25297276.

It is an arithmetic number, because the mean of its divisors is an integer number (75891816).

Almost surely, 2^252972715 is an apocalyptic number.

252972715 is a deficient number, since it is larger than the sum of its proper divisors (50594549).

252972715 is an equidigital number, since it uses as much as digits as its factorization.

252972715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50594548.

The product of its digits is 88200, while the sum is 40.

The square root of 252972715 is about 15905.1160008344. The cubic root of 252972715 is about 632.4476170901.

The spelling of 252972715 in words is "two hundred fifty-two million, nine hundred seventy-two thousand, seven hundred fifteen".