563226720557 has 2 divisors, whose sum is σ = 563226720558. Its totient is φ = 563226720556.

The previous prime is 563226720527. The next prime is 563226720611. The reversal of 563226720557 is 755027622365.

563226720557 is digitally balanced in base 2, 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., 445010402281 + 118216318276 = 667091^2 + 343826^2 .

It is a cyclic number.

It is not a de Polignac number, because 563226720557 - 2¹⁰ = 563226719533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563226720517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281613360278 + 281613360279.

It is an arithmetic number, because the mean of its divisors is an integer number (281613360279).

Almost surely, 2^563226720557 is an apocalyptic number.

It is an amenable number.

563226720557 is a deficient number, since it is larger than the sum of its proper divisors (1).

563226720557 is an equidigital number, since it uses as much as digits as its factorization.

563226720557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 50.

The spelling of 563226720557 in words is "five hundred sixty-three billion, two hundred twenty-six million, seven hundred twenty thousand, five hundred fifty-seven".