564520 has 32 divisors (see below), whose sum is σ = 1386720. Its totient is φ = 205120.

The previous prime is 564497. The next prime is 564523. The reversal of 564520 is 25465.

564520 = T₃₃₁ + T₃₃₂ + ... + T₃₄₀.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 564491 and 564500.

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 7 ways as a sum of consecutive naturals, for example, 202 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (43335).

2⁵⁶⁴⁵²⁰ is an apocalyptic number.

It is an amenable number.

564520 is an abundant number, since it is smaller than the sum of its proper divisors (822200).

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

564520 is a wasteful number, since it uses less digits than its factorization.

564520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 564520 is about 751.3454598252. The cubic root of 564520 is about 82.6468764050.

Adding to 564520 its reverse (25465), we get a palindrome (589985).

It can be divided in two parts, 5645 and 20, that added together give a palindrome (5665).

The spelling of 564520 in words is "five hundred sixty-four thousand, five hundred twenty".