556522223617 has 2 divisors, whose sum is σ = 556522223618. Its totient is φ = 556522223616.

The previous prime is 556522223603. The next prime is 556522223629. The reversal of 556522223617 is 716322225655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430787446336 + 125734777281 = 656344^2 + 354591^2 .

It is a cyclic number.

It is not a de Polignac number, because 556522223617 - 2²⁷ = 556388005889 is a prime.

It is a super-2 number, since 2×556522223617² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556522223657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278261111808 + 278261111809.

It is an arithmetic number, because the mean of its divisors is an integer number (278261111809).

Almost surely, 2^556522223617 is an apocalyptic number.

It is an amenable number.

556522223617 is a deficient number, since it is larger than the sum of its proper divisors (1).

556522223617 is an equidigital number, since it uses as much as digits as its factorization.

556522223617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 46.

The spelling of 556522223617 in words is "five hundred fifty-six billion, five hundred twenty-two million, two hundred twenty-three thousand, six hundred seventeen".