556557496213 has 2 divisors, whose sum is σ = 556557496214. Its totient is φ = 556557496212.

The previous prime is 556557496193. The next prime is 556557496217. The reversal of 556557496213 is 312694755655.

556557496213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455622300004 + 100935196209 = 674998^2 + 317703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556557496213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556557496217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278278748106 + 278278748107.

It is an arithmetic number, because the mean of its divisors is an integer number (278278748107).

Almost surely, 2^556557496213 is an apocalyptic number.

It is an amenable number.

556557496213 is a deficient number, since it is larger than the sum of its proper divisors (1).

556557496213 is an equidigital number, since it uses as much as digits as its factorization.

556557496213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020000, while the sum is 58.

The spelling of 556557496213 in words is "five hundred fifty-six billion, five hundred fifty-seven million, four hundred ninety-six thousand, two hundred thirteen".