565533 has 12 divisors (see below), whose sum is σ = 843648. Its totient is φ = 364680.

The previous prime is 565519. The next prime is 565549. The reversal of 565533 is 335565.

It is a happy number.

565533 is a `hidden beast` number, since 5 + 655 + 3 + 3 = 666.

It is not a de Polignac number, because 565533 - 2⁴ = 565517 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 565497 and 565506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (70304).

2⁵⁶⁵⁵³³ is an apocalyptic number.

It is an amenable number.

565533 is a deficient number, since it is larger than the sum of its proper divisors (278115).

565533 is a wasteful number, since it uses less digits than its factorization.

565533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 2061 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 565533 is about 752.0192816677. The cubic root of 565533 is about 82.6962819518.

The spelling of 565533 in words is "five hundred sixty-five thousand, five hundred thirty-three".