5556505993 has 2 divisors, whose sum is σ = 5556505994. Its totient is φ = 5556505992.

The previous prime is 5556505979. The next prime is 5556506009. The reversal of 5556505993 is 3995056555.

5556505993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4888386889 + 668119104 = 69917^2 + 25848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5556505993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5556505993.

It is not a weakly prime, because it can be changed into another prime (5556505943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778252996 + 2778252997.

It is an arithmetic number, because the mean of its divisors is an integer number (2778252997).

Almost surely, 2^5556505993 is an apocalyptic number.

It is an amenable number.

5556505993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556505993 is an equidigital number, since it uses as much as digits as its factorization.

5556505993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4556250, while the sum is 52.

The square root of 5556505993 is about 74541.9747055308. The cubic root of 5556505993 is about 1771.1986085948.

The spelling of 5556505993 in words is "five billion, five hundred fifty-six million, five hundred five thousand, nine hundred ninety-three".