252456321 has 8 divisors (see below), whose sum is σ = 362501440. Its totient is φ = 155357712.

The previous prime is 252456319. The next prime is 252456353. The reversal of 252456321 is 123654252.

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

It is not a de Polignac number, because 252456321 - 2¹ = 252456319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252456361) 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, 3236581 + ... + 3236658.

It is an arithmetic number, because the mean of its divisors is an integer number (45312680).

Almost surely, 2^252456321 is an apocalyptic number.

It is an amenable number.

252456321 is a deficient number, since it is larger than the sum of its proper divisors (110045119).

252456321 is a wasteful number, since it uses less digits than its factorization.

252456321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473255.

The product of its digits is 14400, while the sum is 30.

The square root of 252456321 is about 15888.8741262558. The cubic root of 252456321 is about 632.0169848357.

The spelling of 252456321 in words is "two hundred fifty-two million, four hundred fifty-six thousand, three hundred twenty-one".