556700647 has 2 divisors, whose sum is σ = 556700648. Its totient is φ = 556700646.

The previous prime is 556700591. The next prime is 556700653. The reversal of 556700647 is 746007655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556700647 - 2⁷ = 556700519 is a prime.

It is a super-2 number, since 2×556700647² = 619831220740437218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556700657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278350323 + 278350324.

It is an arithmetic number, because the mean of its divisors is an integer number (278350324).

Almost surely, 2^556700647 is an apocalyptic number.

556700647 is a deficient number, since it is larger than the sum of its proper divisors (1).

556700647 is an equidigital number, since it uses as much as digits as its factorization.

556700647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 556700647 is about 23594.5045932310. The cubic root of 556700647 is about 822.6351115027.

The spelling of 556700647 in words is "five hundred fifty-six million, seven hundred thousand, six hundred forty-seven".