656057325 has 72 divisors (see below), whose sum is σ = 1376563680. Its totient is φ = 272630400.

The previous prime is 656057293. The next prime is 656057341. The reversal of 656057325 is 523750656.

It is not a de Polignac number, because 656057325 - 2⁵ = 656057293 is a prime.

It is a super-2 number, since 2×656057325² = 860822427372311250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32311 + ... + 48539.

It is an arithmetic number, because the mean of its divisors is an integer number (19118940).

Almost surely, 2^656057325 is an apocalyptic number.

It is an amenable number.

656057325 is an abundant number, since it is smaller than the sum of its proper divisors (720506355).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656057325 is a wasteful number, since it uses less digits than its factorization.

656057325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16267 (or 16255 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 39.

The square root of 656057325 is about 25613.6160078970. The cubic root of 656057325 is about 868.9216061118.

The spelling of 656057325 in words is "six hundred fifty-six million, fifty-seven thousand, three hundred twenty-five".