252125639556 has 24 divisors (see below), whose sum is σ = 672335039040. Its totient is φ = 72035896992.

The previous prime is 252125639551. The next prime is 252125639573. The reversal of 252125639556 is 655936521252.

It is a junction number, because it is equal to n+sod(n) for n = 252125639499 and 252125639508.

It is not an unprimeable number, because it can be changed into a prime (252125639551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500747771 + ... + 1500747938.

It is an arithmetic number, because the mean of its divisors is an integer number (28013959960).

Almost surely, 2^252125639556 is an apocalyptic number.

It is an amenable number.

252125639556 is an abundant number, since it is smaller than the sum of its proper divisors (420209399484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252125639556 is a wasteful number, since it uses less digits than its factorization.

252125639556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001495723 (or 3001495721 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 51.

The spelling of 252125639556 in words is "two hundred fifty-two billion, one hundred twenty-five million, six hundred thirty-nine thousand, five hundred fifty-six".