563688985 has 4 divisors (see below), whose sum is σ = 676426788. Its totient is φ = 450951184.

The previous prime is 563688967. The next prime is 563689039. The reversal of 563688985 is 589886365.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 417303184 + 146385801 = 20428^2 + 12099^2 .

It is a cyclic number.

It is not a de Polignac number, because 563688985 - 2⁷ = 563688857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56368894 + ... + 56368903.

It is an arithmetic number, because the mean of its divisors is an integer number (169106697).

Almost surely, 2^563688985 is an apocalyptic number.

It is an amenable number.

563688985 is a deficient number, since it is larger than the sum of its proper divisors (112737803).

563688985 is a wasteful number, since it uses less digits than its factorization.

563688985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112737802.

The product of its digits is 12441600, while the sum is 58.

The square root of 563688985 is about 23742.1352241116. The cubic root of 563688985 is about 826.0630239361.

The spelling of 563688985 in words is "five hundred sixty-three million, six hundred eighty-eight thousand, nine hundred eighty-five".