565081 has 8 divisors (see below), whose sum is σ = 630144. Its totient is φ = 502320.

The previous prime is 565069. The next prime is 565109. The reversal of 565081 is 180565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 565081 - 2⁵ = 565049 is a prime.

It is a super-2 number, since 2×565081² = 638633073122, which contains 22 as substring.

It is a Duffinian number.

565081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (565381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (78768).

2⁵⁶⁵⁰⁸¹ is an apocalyptic number.

It is an amenable number.

565081 is a deficient number, since it is larger than the sum of its proper divisors (65063).

565081 is a wasteful number, since it uses less digits than its factorization.

565081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 565081 is about 751.7186973862. The cubic root of 565081 is about 82.6742445215.

The spelling of 565081 in words is "five hundred sixty-five thousand, eighty-one".