556197053771 has 2 divisors, whose sum is σ = 556197053772. Its totient is φ = 556197053770.

The previous prime is 556197053761. The next prime is 556197053807. The reversal of 556197053771 is 177350791655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556197053771 - 2¹⁴ = 556197037387 is a prime.

It is not a weakly prime, because it can be changed into another prime (556197053761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278098526885 + 278098526886.

It is an arithmetic number, because the mean of its divisors is an integer number (278098526886).

Almost surely, 2^556197053771 is an apocalyptic number.

556197053771 is a deficient number, since it is larger than the sum of its proper divisors (1).

556197053771 is an equidigital number, since it uses as much as digits as its factorization.

556197053771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6945750, while the sum is 56.

The spelling of 556197053771 in words is "five hundred fifty-six billion, one hundred ninety-seven million, fifty-three thousand, seven hundred seventy-one".