6563225869 has 2 divisors, whose sum is σ = 6563225870. Its totient is φ = 6563225868.

The previous prime is 6563225843. The next prime is 6563225873. The reversal of 6563225869 is 9685223656.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6552902500 + 10323369 = 80950^2 + 3213^2 .

It is a cyclic number.

It is not a de Polignac number, because 6563225869 - 2²⁵ = 6529671437 is a prime.

It is a super-2 number, since 2×6563225869² = 86151867615021610322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6563225899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281612934 + 3281612935.

It is an arithmetic number, because the mean of its divisors is an integer number (3281612935).

Almost surely, 2^6563225869 is an apocalyptic number.

It is an amenable number.

6563225869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6563225869 is an equidigital number, since it uses as much as digits as its factorization.

6563225869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 52.

The square root of 6563225869 is about 81013.7387669524. The cubic root of 6563225869 is about 1872.2871220732.

The spelling of 6563225869 in words is "six billion, five hundred sixty-three million, two hundred twenty-five thousand, eight hundred sixty-nine".