252607665 has 8 divisors (see below), whose sum is σ = 404172288. Its totient is φ = 134724080.

The previous prime is 252607651. The next prime is 252607687. The reversal of 252607665 is 566706252.

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

It is not a de Polignac number, because 252607665 - 2¹⁴ = 252591281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8420241 + ... + 8420270.

It is an arithmetic number, because the mean of its divisors is an integer number (50521536).

Almost surely, 2^252607665 is an apocalyptic number.

It is an amenable number.

252607665 is a deficient number, since it is larger than the sum of its proper divisors (151564623).

252607665 is a wasteful number, since it uses less digits than its factorization.

252607665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16840519.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 252607665 is about 15893.6359905467. The cubic root of 252607665 is about 632.1432546930.

The spelling of 252607665 in words is "two hundred fifty-two million, six hundred seven thousand, six hundred sixty-five".