6563223697 has 2 divisors, whose sum is σ = 6563223698. Its totient is φ = 6563223696.

The previous prime is 6563223671. The next prime is 6563223701. The reversal of 6563223697 is 7963223656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4954892881 + 1608330816 = 70391^2 + 40104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6563223697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6563223697.

It is not a weakly prime, because it can be changed into another prime (6563223647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281611848 + 3281611849.

It is an arithmetic number, because the mean of its divisors is an integer number (3281611849).

Almost surely, 2^6563223697 is an apocalyptic number.

It is an amenable number.

6563223697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6563223697 is an equidigital number, since it uses as much as digits as its factorization.

6563223697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 49.

The square root of 6563223697 is about 81013.7253618175. The cubic root of 6563223697 is about 1872.2869155382.

The spelling of 6563223697 in words is "six billion, five hundred sixty-three million, two hundred twenty-three thousand, six hundred ninety-seven".