252000291 has 4 divisors (see below), whose sum is σ = 336000392. Its totient is φ = 168000192.

The previous prime is 252000263. The next prime is 252000313. The reversal of 252000291 is 192000252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252000291 - 2⁹ = 251999779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252000241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42000046 + ... + 42000051.

It is an arithmetic number, because the mean of its divisors is an integer number (84000098).

Almost surely, 2^252000291 is an apocalyptic number.

252000291 is a deficient number, since it is larger than the sum of its proper divisors (84000101).

252000291 is an equidigital number, since it uses as much as digits as its factorization.

252000291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84000100.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 252000291 is about 15874.5170320234. The cubic root of 252000291 is about 631.6362028953.

The spelling of 252000291 in words is "two hundred fifty-two million, two hundred ninety-one", and thus it is an aban number.