563978163 has 16 divisors (see below), whose sum is σ = 860216576. Its totient is φ = 321965280.

The previous prime is 563978143. The next prime is 563978189. The reversal of 563978163 is 361879365.

It is a happy number.

It is not a de Polignac number, because 563978163 - 2⁹ = 563977651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563978113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10668 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (53763536).

Almost surely, 2^563978163 is an apocalyptic number.

563978163 is a deficient number, since it is larger than the sum of its proper divisors (296238413).

563978163 is a wasteful number, since it uses less digits than its factorization.

563978163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25674.

The product of its digits is 816480, while the sum is 48.

The square root of 563978163 is about 23748.2244178381. The cubic root of 563978163 is about 826.2042592757.

The spelling of 563978163 in words is "five hundred sixty-three million, nine hundred seventy-eight thousand, one hundred sixty-three".