565431 has 8 divisors (see below), whose sum is σ = 772464. Its totient is φ = 367680.

The previous prime is 565429. The next prime is 565441. The reversal of 565431 is 134565.

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

It is not a de Polignac number, because 565431 - 2¹ = 565429 is a prime.

It is a super-2 number, since 2×565431² = 639424431522, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565431.

It is not an unprimeable number, because it can be changed into a prime (565441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (96558).

2⁵⁶⁵⁴³¹ is an apocalyptic number.

565431 is a deficient number, since it is larger than the sum of its proper divisors (207033).

565431 is a wasteful number, since it uses less digits than its factorization.

565431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its digits is 1800, while the sum is 24.

The square root of 565431 is about 751.9514611995. The cubic root of 565431 is about 82.6913099296.

Adding to 565431 its reverse (134565), we get a palindrome (699996).

The spelling of 565431 in words is "five hundred sixty-five thousand, four hundred thirty-one".