6563538226 has 16 divisors (see below), whose sum is σ = 11254231296. Its totient is φ = 2812332096.

The previous prime is 6563538193. The next prime is 6563538263. The reversal of 6563538226 is 6228353656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18775 + ... + 116101.

It is an arithmetic number, because the mean of its divisors is an integer number (703389456).

Almost surely, 2^6563538226 is an apocalyptic number.

6563538226 is a deficient number, since it is larger than the sum of its proper divisors (4690693070).

6563538226 is a wasteful number, since it uses less digits than its factorization.

6563538226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102153.

The product of its digits is 1555200, while the sum is 46.

The square root of 6563538226 is about 81015.6665466624. Note that the first 3 decimals coincide. The cubic root of 6563538226 is about 1872.3168235606.

The spelling of 6563538226 in words is "six billion, five hundred sixty-three million, five hundred thirty-eight thousand, two hundred twenty-six".