563558994 has 24 divisors (see below), whose sum is σ = 1232251020. Its totient is φ = 186128928.

The previous prime is 563558923. The next prime is 563559011. The reversal of 563558994 is 499855365.

It is a happy number.

563558994 is a `hidden beast` number, since 56 + 3 + 5 + 589 + 9 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 503418969 + 60140025 = 22437^2 + 7755^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 563558994.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141657 + ... + 145580.

Almost surely, 2^563558994 is an apocalyptic number.

563558994 is an abundant number, since it is smaller than the sum of its proper divisors (668692026).

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

563558994 is a wasteful number, since it uses less digits than its factorization.

563558994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287354 (or 287351 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 563558994 is about 23739.3975070978. The cubic root of 563558994 is about 825.9995202330. Note that the first 3 decimals are identical.

The spelling of 563558994 in words is "five hundred sixty-three million, five hundred fifty-eight thousand, nine hundred ninety-four".