563945808 has 20 divisors (see below), whose sum is σ = 1456860128. Its totient is φ = 187981920.

The previous prime is 563945797. The next prime is 563945813. The reversal of 563945808 is 808549365.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 11748871 = 563945808 / (5 + 6 + 3 + 9 + 4 + 5 + 8 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5874388 + ... + 5874483.

Almost surely, 2^563945808 is an apocalyptic number.

It is an amenable number.

563945808 is an abundant number, since it is smaller than the sum of its proper divisors (892914320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563945808 is a wasteful number, since it uses less digits than its factorization.

563945808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11748882 (or 11748876 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 563945808 is about 23747.5431992448. The cubic root of 563945808 is about 826.1884594027.

The spelling of 563945808 in words is "five hundred sixty-three million, nine hundred forty-five thousand, eight hundred eight".