252168680025 has 72 divisors (see below), whose sum is σ = 467409458880. Its totient is φ = 129804366720.

The previous prime is 252168680021. The next prime is 252168680033. The reversal of 252168680025 is 520086861252.

It is a happy number.

252168680025 is a `hidden beast` number, since 2 + 521 + 68 + 68 + 0 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 252168680025 - 2² = 252168680021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (252168680021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 23634742 + ... + 23645408.

It is an arithmetic number, because the mean of its divisors is an integer number (6491798040).

Almost surely, 2^252168680025 is an apocalyptic number.

252168680025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252168680025 is a deficient number, since it is larger than the sum of its proper divisors (215240778855).

252168680025 is a wasteful number, since it uses less digits than its factorization.

252168680025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14335 (or 14327 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 252168680025 in words is "two hundred fifty-two billion, one hundred sixty-eight million, six hundred eighty thousand, twenty-five".