8522645563 has 2 divisors, whose sum is σ = 8522645564. Its totient is φ = 8522645562.

The previous prime is 8522645539. The next prime is 8522645569. The reversal of 8522645563 is 3655462258.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8522645563 is a prime.

It is not a weakly prime, because it can be changed into another prime (8522645569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4261322781 + 4261322782.

It is an arithmetic number, because the mean of its divisors is an integer number (4261322782).

Almost surely, 2^8522645563 is an apocalyptic number.

8522645563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8522645563 is an equidigital number, since it uses as much as digits as its factorization.

8522645563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728000, while the sum is 46.

The square root of 8522645563 is about 92318.1756914639. The cubic root of 8522645563 is about 2042.6383237882.

The spelling of 8522645563 in words is "eight billion, five hundred twenty-two million, six hundred forty-five thousand, five hundred sixty-three".