331666325 has 24 divisors (see below), whose sum is σ = 433472256. Its totient is φ = 251240000.

The previous prime is 331666319. The next prime is 331666351. The reversal of 331666325 is 523666133.

It is not a de Polignac number, because 331666325 - 2²² = 327472021 is a prime.

It is a super-2 number, since 2×331666325² = 220005102278011250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55220 + ... + 60930.

It is an arithmetic number, because the mean of its divisors is an integer number (18061344).

Almost surely, 2^331666325 is an apocalyptic number.

It is an amenable number.

331666325 is a deficient number, since it is larger than the sum of its proper divisors (101805931).

331666325 is a wasteful number, since it uses less digits than its factorization.

331666325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845 (or 5840 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

The square root of 331666325 is about 18211.7084591205. The cubic root of 331666325 is about 692.2035031638.

The spelling of 331666325 in words is "three hundred thirty-one million, six hundred sixty-six thousand, three hundred twenty-five".