252976391 has 8 divisors (see below), whose sum is σ = 255593664. Its totient is φ = 250370560.

The previous prime is 252976387. The next prime is 252976397. The reversal of 252976391 is 193679252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252976391 - 2² = 252976387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252976397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45746 + ... + 50976.

It is an arithmetic number, because the mean of its divisors is an integer number (31949208).

Almost surely, 2^252976391 is an apocalyptic number.

252976391 is a deficient number, since it is larger than the sum of its proper divisors (2617273).

252976391 is a wasteful number, since it uses less digits than its factorization.

252976391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721.

The product of its digits is 204120, while the sum is 44.

The square root of 252976391 is about 15905.2315607161. The cubic root of 252976391 is about 632.4506804852.

The spelling of 252976391 in words is "two hundred fifty-two million, nine hundred seventy-six thousand, three hundred ninety-one".