252308915 has 4 divisors (see below), whose sum is σ = 302770704. Its totient is φ = 201847128.

The previous prime is 252308893. The next prime is 252308929. The reversal of 252308915 is 519803252.

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 252308915 - 2⁶ = 252308851 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 25230887 + ... + 25230896.

It is an arithmetic number, because the mean of its divisors is an integer number (75692676).

Almost surely, 2^252308915 is an apocalyptic number.

252308915 is a deficient number, since it is larger than the sum of its proper divisors (50461789).

252308915 is an equidigital number, since it uses as much as digits as its factorization.

252308915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50461788.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 252308915 is about 15884.2347942858. The cubic root of 252308915 is about 631.8939520230.

The spelling of 252308915 in words is "two hundred fifty-two million, three hundred eight thousand, nine hundred fifteen".