556011055597 has 2 divisors, whose sum is σ = 556011055598. Its totient is φ = 556011055596.

The previous prime is 556011055507. The next prime is 556011055603. The reversal of 556011055597 is 795550110655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345266708836 + 210744346761 = 587594^2 + 459069^2 .

It is a cyclic number.

It is not a de Polignac number, because 556011055597 - 2³⁹ = 6255241709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556011055597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556011055507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278005527798 + 278005527799.

It is an arithmetic number, because the mean of its divisors is an integer number (278005527799).

Almost surely, 2^556011055597 is an apocalyptic number.

It is an amenable number.

556011055597 is a deficient number, since it is larger than the sum of its proper divisors (1).

556011055597 is an equidigital number, since it uses as much as digits as its factorization.

556011055597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1181250, while the sum is 49.

The spelling of 556011055597 in words is "five hundred fifty-six billion, eleven million, fifty-five thousand, five hundred ninety-seven".