465565 has 4 divisors (see below), whose sum is σ = 558684. Its totient is φ = 372448.

The previous prime is 465551. The next prime is 465581. The reversal of 465565 is 565564.

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 181476 + 284089 = 426^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 465565 - 2¹⁵ = 432797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 46552 + ... + 46561.

It is an arithmetic number, because the mean of its divisors is an integer number (139671).

2⁴⁶⁵⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

465565 is a deficient number, since it is larger than the sum of its proper divisors (93119).

465565 is an equidigital number, since it uses as much as digits as its factorization.

465565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93118.

The product of its digits is 18000, while the sum is 31.

The square root of 465565 is about 682.3232371831. The cubic root of 465565 is about 77.5044742474.

Subtracting 465565 from its reverse (565564), we obtain a palindrome (99999).

The spelling of 465565 in words is "four hundred sixty-five thousand, five hundred sixty-five".