252688715 has 8 divisors (see below), whose sum is σ = 303415728. Its totient is φ = 202024800.

The previous prime is 252688703. The next prime is 252688717. The reversal of 252688715 is 517886252.

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

It is not a de Polignac number, because 252688715 - 2¹⁰ = 252687691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252688717) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6461 + ... + 23390.

It is an arithmetic number, because the mean of its divisors is an integer number (37926966).

Almost surely, 2^252688715 is an apocalyptic number.

252688715 is a deficient number, since it is larger than the sum of its proper divisors (50727013).

252688715 is a wasteful number, since it uses less digits than its factorization.

252688715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31549.

The product of its digits is 268800, while the sum is 44.

The square root of 252688715 is about 15896.1855487409. The cubic root of 252688715 is about 632.2108558775.

The spelling of 252688715 in words is "two hundred fifty-two million, six hundred eighty-eight thousand, seven hundred fifteen".