252651725 has 24 divisors (see below), whose sum is σ = 326371968. Its totient is φ = 193838400.

The previous prime is 252651719. The next prime is 252651727. The reversal of 252651725 is 527156252.

It is not a de Polignac number, because 252651725 - 2²² = 248457421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252651727) 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, 63752 + ... + 67598.

It is an arithmetic number, because the mean of its divisors is an integer number (13598832).

Almost surely, 2^252651725 is an apocalyptic number.

252651725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252651725 is a deficient number, since it is larger than the sum of its proper divisors (73720243).

252651725 is a wasteful number, since it uses less digits than its factorization.

252651725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965 (or 3960 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 252651725 is about 15895.0220194877. The cubic root of 252651725 is about 632.1800055079.

The spelling of 252651725 in words is "two hundred fifty-two million, six hundred fifty-one thousand, seven hundred twenty-five".