556228056971 has 2 divisors, whose sum is σ = 556228056972. Its totient is φ = 556228056970.

The previous prime is 556228056959. The next prime is 556228056977. The reversal of 556228056971 is 179650822655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556228056971 - 2¹⁰ = 556228055947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (556228056977) by changing a digit.

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 as a sum of consecutive naturals, namely, 278114028485 + 278114028486.

It is an arithmetic number, because the mean of its divisors is an integer number (278114028486).

Almost surely, 2^556228056971 is an apocalyptic number.

556228056971 is a deficient number, since it is larger than the sum of its proper divisors (1).

556228056971 is an equidigital number, since it uses as much as digits as its factorization.

556228056971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072000, while the sum is 56.

The spelling of 556228056971 in words is "five hundred fifty-six billion, two hundred twenty-eight million, fifty-six thousand, nine hundred seventy-one".