325388021 has 8 divisors (see below), whose sum is σ = 375483264. Its totient is φ = 276195600.

The previous prime is 325387981. The next prime is 325388029. The reversal of 325388021 is 120883523.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325388021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325388029) 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, 224930 + ... + 226371.

It is an arithmetic number, because the mean of its divisors is an integer number (46935408).

Almost surely, 2^325388021 is an apocalyptic number.

It is an amenable number.

325388021 is a deficient number, since it is larger than the sum of its proper divisors (50095243).

325388021 is a wasteful number, since it uses less digits than its factorization.

325388021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451411.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 325388021 is about 18038.5149333308. The cubic root of 325388021 is about 687.8079429721.

The spelling of 325388021 in words is "three hundred twenty-five million, three hundred eighty-eight thousand, twenty-one".