5555555955569 has 2 divisors, whose sum is σ = 5555555955570. Its totient is φ = 5555555955568.

The previous prime is 5555555955497. The next prime is 5555555955613. The reversal of 5555555955569 is 9655595555555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4083179993344 + 1472375962225 = 2020688^2 + 1213415^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555555955569 - 2¹⁶ = 5555555890033 is a prime.

It is a super-2 number, since 2×5555555955569² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5555555955496 and 5555555955505.

It is not a weakly prime, because it can be changed into another prime (5555555955269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777777977784 + 2777777977785.

It is an arithmetic number, because the mean of its divisors is an integer number (2777777977785).

Almost surely, 2^{5555555955569} is an apocalyptic number.

It is an amenable number.

5555555955569 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555555955569 is an equidigital number, since it uses as much as digits as its factorization.

5555555955569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4746093750, while the sum is 74.

The spelling of 5555555955569 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-five million, nine hundred fifty-five thousand, five hundred sixty-nine".