566533 has 4 divisors (see below), whose sum is σ = 618048. Its totient is φ = 515020.

The previous prime is 566521. The next prime is 566537. The reversal of 566533 is 335665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-566533 is a prime.

It is a super-3 number, since 3×566533³ = 545502683335624311, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25741 + ... + 25762.

It is an arithmetic number, because the mean of its divisors is an integer number (154512).

2⁵⁶⁶⁵³³ is an apocalyptic number.

It is an amenable number.

566533 is a deficient number, since it is larger than the sum of its proper divisors (51515).

566533 is a wasteful number, since it uses less digits than its factorization.

566533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51514.

The product of its digits is 8100, while the sum is 28.

The square root of 566533 is about 752.6838645806. The cubic root of 566533 is about 82.7449956357.

The spelling of 566533 in words is "five hundred sixty-six thousand, five hundred thirty-three".