563223420449 has 2 divisors, whose sum is σ = 563223420450. Its totient is φ = 563223420448.

The previous prime is 563223420443. The next prime is 563223420509. The reversal of 563223420449 is 944024322365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450686654224 + 112536766225 = 671332^2 + 335465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563223420449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (563223420443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281611710224 + 281611710225.

It is an arithmetic number, because the mean of its divisors is an integer number (281611710225).

Almost surely, 2^563223420449 is an apocalyptic number.

It is an amenable number.

563223420449 is a deficient number, since it is larger than the sum of its proper divisors (1).

563223420449 is an equidigital number, since it uses as much as digits as its factorization.

563223420449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 563223420449 in words is "five hundred sixty-three billion, two hundred twenty-three million, four hundred twenty thousand, four hundred forty-nine".