656525656 has 16 divisors (see below), whose sum is σ = 1236822840. Its totient is φ = 326706240.

The previous prime is 656525651. The next prime is 656525659.

656525656 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656525651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192781 + ... + 196156.

Almost surely, 2^656525656 is an apocalyptic number.

It is an amenable number.

656525656 is a deficient number, since it is larger than the sum of its proper divisors (580297184).

656525656 is a wasteful number, since it uses less digits than its factorization.

656525656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389154 (or 389150 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 46.

The square root of 656525656 is about 25622.7566042376. The cubic root of 656525656 is about 869.1283188052.

The spelling of 656525656 in words is "six hundred fifty-six million, five hundred twenty-five thousand, six hundred fifty-six".