6500563 has 2 divisors, whose sum is σ = 6500564. Its totient is φ = 6500562.

The previous prime is 6500539. The next prime is 6500569. The reversal of 6500563 is 3650056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6500563 - 2⁵ = 6500531 is a prime.

6500563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6500569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250281 + 3250282.

It is an arithmetic number, because the mean of its divisors is an integer number (3250282).

Almost surely, 2^6500563 is an apocalyptic number.

6500563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500563 is an equidigital number, since it uses as much as digits as its factorization.

6500563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 6500563 is about 2549.6201677897. The cubic root of 6500563 is about 186.6309459001.

The spelling of 6500563 in words is "six million, five hundred thousand, five hundred sixty-three".