252532749791 has 16 divisors (see below), whose sum is σ = 290829303360. Its totient is φ = 214792546560.

The previous prime is 252532749701. The next prime is 252532749793. The reversal of 252532749791 is 197947235252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252532749791 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 (252532749793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463305 + ... + 2563773.

It is an arithmetic number, because the mean of its divisors is an integer number (18176831460).

Almost surely, 2^252532749791 is an apocalyptic number.

252532749791 is a deficient number, since it is larger than the sum of its proper divisors (38296553569).

252532749791 is a wasteful number, since it uses less digits than its factorization.

252532749791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103234.

The product of its digits is 9525600, while the sum is 56.

The spelling of 252532749791 in words is "two hundred fifty-two billion, five hundred thirty-two million, seven hundred forty-nine thousand, seven hundred ninety-one".