564738563 has 4 divisors (see below), whose sum is σ = 582955968. Its totient is φ = 546521160.

The previous prime is 564738533. The next prime is 564738599. The reversal of 564738563 is 365837465.

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

It is a cyclic number.

It is not a de Polignac number, because 564738563 - 2²⁴ = 547961347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564738533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9108656 + ... + 9108717.

It is an arithmetic number, because the mean of its divisors is an integer number (145738992).

Almost surely, 2^564738563 is an apocalyptic number.

564738563 is a deficient number, since it is larger than the sum of its proper divisors (18217405).

564738563 is a wasteful number, since it uses less digits than its factorization.

564738563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18217404.

The product of its digits is 1814400, while the sum is 47.

The square root of 564738563 is about 23764.2286430677. The cubic root of 564738563 is about 826.5754105135.

The spelling of 564738563 in words is "five hundred sixty-four million, seven hundred thirty-eight thousand, five hundred sixty-three".