556650657 has 32 divisors (see below), whose sum is σ = 886579200. Its totient is φ = 344073744.

The previous prime is 556650643. The next prime is 556650667. The reversal of 556650657 is 756056655.

It is not a de Polignac number, because 556650657 - 2⁸ = 556650401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556650667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12568 + ... + 35654.

It is an arithmetic number, because the mean of its divisors is an integer number (27705600).

Almost surely, 2^556650657 is an apocalyptic number.

556650657 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

556650657 is a deficient number, since it is larger than the sum of its proper divisors (329928543).

556650657 is a wasteful number, since it uses less digits than its factorization.

556650657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23162 (or 23156 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The square root of 556650657 is about 23593.4452126009. The cubic root of 556650657 is about 822.6104874009.

The spelling of 556650657 in words is "five hundred fifty-six million, six hundred fifty thousand, six hundred fifty-seven".