252815 has 8 divisors (see below), whose sum is σ = 308880. Its totient is φ = 198592.

The previous prime is 252779. The next prime is 252817. The reversal of 252815 is 518252.

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 252815 - 2⁸ = 252559 is a prime.

It is a super-3 number, since 3×252815³ = 48476333926330125, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134 + ... + 723.

It is an arithmetic number, because the mean of its divisors is an integer number (38610).

2²⁵²⁸¹⁵ is an apocalyptic number.

252815 is a deficient number, since it is larger than the sum of its proper divisors (56065).

252815 is an equidigital number, since it uses as much as digits as its factorization.

252815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its digits is 800, while the sum is 23.

The square root of 252815 is about 502.8071200769. The cubic root of 252815 is about 63.2316157311.

The spelling of 252815 in words is "two hundred fifty-two thousand, eight hundred fifteen".