252631767 has 4 divisors (see below), whose sum is σ = 336842360. Its totient is φ = 168421176.

The previous prime is 252631763. The next prime is 252631801. The reversal of 252631767 is 767136252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252631767 - 2² = 252631763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252631763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42105292 + ... + 42105297.

It is an arithmetic number, because the mean of its divisors is an integer number (84210590).

Almost surely, 2^252631767 is an apocalyptic number.

252631767 is a deficient number, since it is larger than the sum of its proper divisors (84210593).

252631767 is an equidigital number, since it uses as much as digits as its factorization.

252631767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84210592.

The product of its digits is 105840, while the sum is 39.

The square root of 252631767 is about 15894.3942004721. The cubic root of 252631767 is about 632.1633589024.

The spelling of 252631767 in words is "two hundred fifty-two million, six hundred thirty-one thousand, seven hundred sixty-seven".