556197053689 has 2 divisors, whose sum is σ = 556197053690. Its totient is φ = 556197053688.

The previous prime is 556197053681. The next prime is 556197053761. The reversal of 556197053689 is 986350791655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555609233664 + 587820025 = 745392^2 + 24245^2 .

It is a cyclic number.

It is not a de Polignac number, because 556197053689 - 2³ = 556197053681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556197053689.

It is not a weakly prime, because it can be changed into another prime (556197053681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278098526844 + 278098526845.

It is an arithmetic number, because the mean of its divisors is an integer number (278098526845).

Almost surely, 2^556197053689 is an apocalyptic number.

It is an amenable number.

556197053689 is a deficient number, since it is larger than the sum of its proper divisors (1).

556197053689 is an equidigital number, since it uses as much as digits as its factorization.

556197053689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236000, while the sum is 64.

The spelling of 556197053689 in words is "five hundred fifty-six billion, one hundred ninety-seven million, fifty-three thousand, six hundred eighty-nine".