325552221 has 12 divisors (see below), whose sum is σ = 480247872. Its totient is φ = 212416776.

The previous prime is 325552219. The next prime is 325552229. The reversal of 325552221 is 122255523.

It is not a de Polignac number, because 325552221 - 2¹ = 325552219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325552229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384391 + ... + 385236.

It is an arithmetic number, because the mean of its divisors is an integer number (40020656).

Almost surely, 2^325552221 is an apocalyptic number.

It is an amenable number.

325552221 is a deficient number, since it is larger than the sum of its proper divisors (154695651).

325552221 is a wasteful number, since it uses less digits than its factorization.

325552221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769680 (or 769677 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 325552221 is about 18043.0657317430. The cubic root of 325552221 is about 687.9236192980.

The spelling of 325552221 in words is "three hundred twenty-five million, five hundred fifty-two thousand, two hundred twenty-one".