556658656 has 24 divisors (see below), whose sum is σ = 1153603080. Its totient is φ = 263680128.

The previous prime is 556658651. The next prime is 556658671. The reversal of 556658656 is 656856655.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556658651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457171 + ... + 458386.

It is an arithmetic number, because the mean of its divisors is an integer number (48066795).

Almost surely, 2^556658656 is an apocalyptic number.

It is an amenable number.

556658656 is an abundant number, since it is smaller than the sum of its proper divisors (596944424).

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

556658656 is a wasteful number, since it uses less digits than its factorization.

556658656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915586 (or 915578 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 52.

The square root of 556658656 is about 23593.6147294135. The cubic root of 556658656 is about 822.6144276518.

The spelling of 556658656 in words is "five hundred fifty-six million, six hundred fifty-eight thousand, six hundred fifty-six".