5555005055557 has 2 divisors, whose sum is σ = 5555005055558. Its totient is φ = 5555005055556.

The previous prime is 5555005055519. The next prime is 5555005055591. The reversal of 5555005055557 is 7555505005555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4238859204801 + 1316145850756 = 2058849^2 + 1147234^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555005055557 - 2⁷ = 5555005055429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555005085557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777502527778 + 2777502527779.

It is an arithmetic number, because the mean of its divisors is an integer number (2777502527779).

Almost surely, 2^{5555005055557} is an apocalyptic number.

It is an amenable number.

5555005055557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555005055557 is an equidigital number, since it uses as much as digits as its factorization.

5555005055557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13671875, while the sum is 52.

The spelling of 5555005055557 in words is "five trillion, five hundred fifty-five billion, five million, fifty-five thousand, five hundred fifty-seven".