252910321 has 8 divisors (see below), whose sum is σ = 256919040. Its totient is φ = 248927712.

The previous prime is 252910319. The next prime is 252910351. The reversal of 252910321 is 123019252.

It is a happy number.

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 252910321 - 2¹ = 252910319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252910351) 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, 13476 + ... + 26218.

It is an arithmetic number, because the mean of its divisors is an integer number (32114880).

Almost surely, 2^252910321 is an apocalyptic number.

It is an amenable number.

252910321 is a deficient number, since it is larger than the sum of its proper divisors (4008719).

252910321 is a wasteful number, since it uses less digits than its factorization.

252910321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 252910321 is about 15903.1544355200. The cubic root of 252910321 is about 632.3956165132.

Adding to 252910321 its reverse (123019252), we get a palindrome (375929573).

The spelling of 252910321 in words is "two hundred fifty-two million, nine hundred ten thousand, three hundred twenty-one".