252538725 has 24 divisors (see below), whose sum is σ = 421446240. Its totient is φ = 133424320.

The previous prime is 252538711. The next prime is 252538733. The reversal of 252538725 is 527835252.

It is not a de Polignac number, because 252538725 - 2¹¹ = 252536677 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7710 + ... + 23759.

It is an arithmetic number, because the mean of its divisors is an integer number (17560260).

Almost surely, 2^252538725 is an apocalyptic number.

252538725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252538725 is a deficient number, since it is larger than the sum of its proper divisors (168907515).

252538725 is a wasteful number, since it uses less digits than its factorization.

252538725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31589 (or 31584 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 252538725 is about 15891.4670499611. The cubic root of 252538725 is about 632.0857426864.

The spelling of 252538725 in words is "two hundred fifty-two million, five hundred thirty-eight thousand, seven hundred twenty-five".