325057721 has 8 divisors (see below), whose sum is σ = 328431264. Its totient is φ = 321693120.

The previous prime is 325057679. The next prime is 325057739. The reversal of 325057721 is 127750523.

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 325057721 - 2⁶ = 325057657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325057771) 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, 89870 + ... + 93416.

It is an arithmetic number, because the mean of its divisors is an integer number (41053908).

Almost surely, 2^325057721 is an apocalyptic number.

It is an amenable number.

325057721 is a deficient number, since it is larger than the sum of its proper divisors (3373543).

325057721 is a wasteful number, since it uses less digits than its factorization.

325057721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 325057721 is about 18029.3571987467. The cubic root of 325057721 is about 687.5751338713.

The spelling of 325057721 in words is "three hundred twenty-five million, fifty-seven thousand, seven hundred twenty-one".