564503 has 4 divisors (see below), whose sum is σ = 575208. Its totient is φ = 553800.

The previous prime is 564497. The next prime is 564523. The reversal of 564503 is 305465.

564503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564523) 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, 5273 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (143802).

2⁵⁶⁴⁵⁰³ is an apocalyptic number.

564503 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

564503 is a deficient number, since it is larger than the sum of its proper divisors (10705).

564503 is a wasteful number, since it uses less digits than its factorization.

564503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 564503 is about 751.3341467017. The cubic root of 564503 is about 82.6460467851.

Adding to 564503 its reverse (305465), we get a palindrome (869968).

The spelling of 564503 in words is "five hundred sixty-four thousand, five hundred three".