252756807 has 4 divisors (see below), whose sum is σ = 337009080. Its totient is φ = 168504536.

The previous prime is 252756773. The next prime is 252756811. The reversal of 252756807 is 708657252.

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

It is a cyclic number.

It is not a de Polignac number, because 252756807 - 2²⁰ = 251708231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252756827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42126132 + ... + 42126137.

It is an arithmetic number, because the mean of its divisors is an integer number (84252270).

Almost surely, 2^252756807 is an apocalyptic number.

252756807 is a deficient number, since it is larger than the sum of its proper divisors (84252273).

252756807 is an equidigital number, since it uses as much as digits as its factorization.

252756807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84252272.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 252756807 is about 15898.3271761528. The cubic root of 252756807 is about 632.2676380405.

The spelling of 252756807 in words is "two hundred fifty-two million, seven hundred fifty-six thousand, eight hundred seven".