252671665 has 8 divisors (see below), whose sum is σ = 303932160. Its totient is φ = 201653232.

The previous prime is 252671603. The next prime is 252671677. The reversal of 252671665 is 566176252.

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 252671665 - 2¹⁹ = 252147377 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 58209 + ... + 62398.

It is an arithmetic number, because the mean of its divisors is an integer number (37991520).

Almost surely, 2^252671665 is an apocalyptic number.

It is an amenable number.

252671665 is a deficient number, since it is larger than the sum of its proper divisors (51260495).

252671665 is a wasteful number, since it uses less digits than its factorization.

252671665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121031.

The product of its digits is 151200, while the sum is 40.

The square root of 252671665 is about 15895.6492475142. The cubic root of 252671665 is about 632.1966362245.

The spelling of 252671665 in words is "two hundred fifty-two million, six hundred seventy-one thousand, six hundred sixty-five".