252013391 has 8 divisors (see below), whose sum is σ = 290565024. Its totient is φ = 214099200.

The previous prime is 252013381. The next prime is 252013403. The reversal of 252013391 is 193310252.

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

It is not a de Polignac number, because 252013391 - 2¹⁰ = 252012367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252013391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252013351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158510 + ... + 160091.

It is an arithmetic number, because the mean of its divisors is an integer number (36320628).

Almost surely, 2^252013391 is an apocalyptic number.

252013391 is a deficient number, since it is larger than the sum of its proper divisors (38551633).

252013391 is a wasteful number, since it uses less digits than its factorization.

252013391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318721.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 252013391 is about 15874.9296376393. The cubic root of 252013391 is about 631.6471477118.

The spelling of 252013391 in words is "two hundred fifty-two million, thirteen thousand, three hundred ninety-one".