252951631 has 8 divisors (see below), whose sum is σ = 264142944. Its totient is φ = 241776480.

The previous prime is 252951581. The next prime is 252951679. The reversal of 252951631 is 136159252.

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 252951631 - 2¹⁷ = 252820559 is a prime.

It is a super-2 number, since 2×252951631² = 127969055251120322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252951031) 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, 36885 + ... + 43201.

It is an arithmetic number, because the mean of its divisors is an integer number (33017868).

Almost surely, 2^252951631 is an apocalyptic number.

252951631 is a deficient number, since it is larger than the sum of its proper divisors (11191313).

252951631 is a wasteful number, since it uses less digits than its factorization.

252951631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081.

The product of its digits is 16200, while the sum is 34.

The square root of 252951631 is about 15904.4531814206. The cubic root of 252951631 is about 632.4300461621.

The spelling of 252951631 in words is "two hundred fifty-two million, nine hundred fifty-one thousand, six hundred thirty-one".