252622584818 has 18 divisors (see below), whose sum is σ = 381989382957. Its totient is φ = 125300881680.

The previous prime is 252622584817. The next prime is 252622584827. The reversal of 252622584818 is 818485226252.

It can be written as a sum of positive squares in 2 ways, for example, as 155170602889 + 97451981929 = 393917^2 + 312173^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=355403.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252622584818.

It is not an unprimeable number, because it can be changed into a prime (252622584817) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 93114230 + ... + 93116942.

Almost surely, 2^252622584818 is an apocalyptic number.

252622584818 is a deficient number, since it is larger than the sum of its proper divisors (129366798139).

252622584818 is an frugal number, since it uses more digits than its factorization.

252622584818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690 (or 2846 counting only the distinct ones).

The product of its digits is 4915200, while the sum is 53.

The spelling of 252622584818 in words is "two hundred fifty-two billion, six hundred twenty-two million, five hundred eighty-four thousand, eight hundred eighteen".