320325251 has 8 divisors (see below), whose sum is σ = 328382208. Its totient is φ = 312280000.

The previous prime is 320325223. The next prime is 320325253. The reversal of 320325251 is 152523023.

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 320325251 - 2¹⁴ = 320308867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320325253) 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, 84701 + ... + 88401.

It is an arithmetic number, because the mean of its divisors is an integer number (41047776).

Almost surely, 2^320325251 is an apocalyptic number.

320325251 is a deficient number, since it is larger than the sum of its proper divisors (8056957).

320325251 is a wasteful number, since it uses less digits than its factorization.

320325251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 320325251 is about 17897.6325529384. The cubic root of 320325251 is about 684.2220382792. Note that the first 3 decimals are identical.

Adding to 320325251 its reverse (152523023), we get a palindrome (472848274).

The spelling of 320325251 in words is "three hundred twenty million, three hundred twenty-five thousand, two hundred fifty-one".