564545 has 4 divisors (see below), whose sum is σ = 677460. Its totient is φ = 451632.

The previous prime is 564533. The next prime is 564593. The reversal of 564545 is 545465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 153664 + 410881 = 392^2 + 641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564545 is a prime.

It is a super-2 number, since 2×564545² = 637422114050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56450 + ... + 56459.

It is an arithmetic number, because the mean of its divisors is an integer number (169365).

2⁵⁶⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

564545 is a deficient number, since it is larger than the sum of its proper divisors (112915).

564545 is a wasteful number, since it uses less digits than its factorization.

564545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112914.

The product of its digits is 12000, while the sum is 29.

The square root of 564545 is about 751.3620964622. The cubic root of 564545 is about 82.6480964039.

The spelling of 564545 in words is "five hundred sixty-four thousand, five hundred forty-five".