564517 has 4 divisors (see below), whose sum is σ = 576576. Its totient is φ = 552460.

The previous prime is 564497. The next prime is 564523. The reversal of 564517 is 715465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 715465 = 5 ⋅143093.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564517 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564017) 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, 5959 + ... + 6052.

It is an arithmetic number, because the mean of its divisors is an integer number (144144).

2⁵⁶⁴⁵¹⁷ is an apocalyptic number.

It is an amenable number.

564517 is a deficient number, since it is larger than the sum of its proper divisors (12059).

564517 is a wasteful number, since it uses less digits than its factorization.

564517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12058.

The product of its digits is 4200, while the sum is 28.

The square root of 564517 is about 751.3434634041. The cubic root of 564517 is about 82.6467300027.

It can be divided in two parts, 564 and 517, that added together give a triangular number (1081 = T₄₆).

The spelling of 564517 in words is "five hundred sixty-four thousand, five hundred seventeen".