331656725 has 12 divisors (see below), whose sum is σ = 411848640. Its totient is φ = 264942000.

The previous prime is 331656697. The next prime is 331656751. The reversal of 331656725 is 527656133.

It is not a de Polignac number, because 331656725 - 2²⁸ = 63221269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8750 + ... + 27200.

It is an arithmetic number, because the mean of its divisors is an integer number (34320720).

Almost surely, 2^331656725 is an apocalyptic number.

It is an amenable number.

331656725 is a deficient number, since it is larger than the sum of its proper divisors (80191915).

331656725 is a wasteful number, since it uses less digits than its factorization.

331656725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19180 (or 19175 counting only the distinct ones).

The product of its digits is 113400, while the sum is 38.

The square root of 331656725 is about 18211.4448905077. Note that the first 3 decimals coincide. The cubic root of 331656725 is about 692.1968245461.

The spelling of 331656725 in words is "three hundred thirty-one million, six hundred fifty-six thousand, seven hundred twenty-five".