252640025025 has 24 divisors (see below), whose sum is σ = 425579279040. Its totient is φ = 132199055040.

The previous prime is 252640025021. The next prime is 252640025039. The reversal of 252640025025 is 520520046252.

It is not a de Polignac number, because 252640025025 - 2² = 252640025021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252640025021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31774645 + ... + 31782594.

It is an arithmetic number, because the mean of its divisors is an integer number (17732469960).

Almost surely, 2^252640025025 is an apocalyptic number.

252640025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252640025025 is a deficient number, since it is larger than the sum of its proper divisors (172939254015).

252640025025 is a wasteful number, since it uses less digits than its factorization.

252640025025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63557305 (or 63557300 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 252640025025 in words is "two hundred fifty-two billion, six hundred forty million, twenty-five thousand, twenty-five".