564540 has 36 divisors (see below), whose sum is σ = 1597176. Its totient is φ = 148992.

The previous prime is 564533. The next prime is 564593. The reversal of 564540 is 45465.

564540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 564540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5772 + ... + 5868.

It is an arithmetic number, because the mean of its divisors is an integer number (44366).

2⁵⁶⁴⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798588).

564540 is an abundant number, since it is smaller than the sum of its proper divisors (1032636).

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

564540 is a wasteful number, since it uses less digits than its factorization.

564540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 564540 is about 751.3587691642. The cubic root of 564540 is about 82.6478524070.

The spelling of 564540 in words is "five hundred sixty-four thousand, five hundred forty".