565005 has 16 divisors (see below), whose sum is σ = 1033344. Its totient is φ = 258240.

The previous prime is 564997. The next prime is 565013. The reversal of 565005 is 500565.

565005 = T₆₄ + T₆₅ + ... + T₁₅₃.

565005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (564997) and next prime (565013).

It is not a de Polignac number, because 565005 - 2³ = 564997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (64584).

2⁵⁶⁵⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

565005 is a deficient number, since it is larger than the sum of its proper divisors (468339).

565005 is a wasteful number, since it uses less digits than its factorization.

565005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 565005 is about 751.6681448618. The cubic root of 565005 is about 82.6705379590.

The spelling of 565005 in words is "five hundred sixty-five thousand, five".