325821856 has 12 divisors (see below), whose sum is σ = 641461842. Its totient is φ = 162910912.

The previous prime is 325821851. The next prime is 325821893. The reversal of 325821856 is 658128523.

It can be written as a sum of positive squares in only one way, i.e., 179024400 + 146797456 = 13380^2 + 12116^2 .

It is not an unprimeable number, because it can be changed into a prime (325821851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090935 + ... + 5090998.

Almost surely, 2^325821856 is an apocalyptic number.

It is an amenable number.

325821856 is a deficient number, since it is larger than the sum of its proper divisors (315639986).

325821856 is a wasteful number, since it uses less digits than its factorization.

325821856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181943 (or 10181935 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 325821856 is about 18050.5361693220. The cubic root of 325821856 is about 688.1134885798.

The spelling of 325821856 in words is "three hundred twenty-five million, eight hundred twenty-one thousand, eight hundred fifty-six".