563534985 has 16 divisors (see below), whose sum is σ = 971014464. Its totient is φ = 277432512.

The previous prime is 563534977. The next prime is 563534999. The reversal of 563534985 is 589435365.

It is not a de Polignac number, because 563534985 - 2³ = 563534977 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444767 + ... + 1445156.

It is an arithmetic number, because the mean of its divisors is an integer number (60688404).

Almost surely, 2^563534985 is an apocalyptic number.

It is an amenable number.

563534985 is a deficient number, since it is larger than the sum of its proper divisors (407479479).

563534985 is a wasteful number, since it uses less digits than its factorization.

563534985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889944.

The product of its digits is 1944000, while the sum is 48.

The square root of 563534985 is about 23738.8918233350. The cubic root of 563534985 is about 825.9877901957.

The spelling of 563534985 in words is "five hundred sixty-three million, five hundred thirty-four thousand, nine hundred eighty-five".