565220431 has 8 divisors (see below), whose sum is σ = 577940480. Its totient is φ = 552639672.

The previous prime is 565220407. The next prime is 565220441. The reversal of 565220431 is 134022565.

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 565220431 - 2¹¹ = 565218383 is a prime.

It is a super-2 number, since 2×565220431² = 638948271239651522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565220431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565220441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26595 + ... + 42868.

It is an arithmetic number, because the mean of its divisors is an integer number (72242560).

Almost surely, 2^565220431 is an apocalyptic number.

565220431 is a deficient number, since it is larger than the sum of its proper divisors (12720049).

565220431 is a wasteful number, since it uses less digits than its factorization.

565220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69645.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 565220431 is about 23774.3649967775. The cubic root of 565220431 is about 826.8104378549.

Adding to 565220431 its reverse (134022565), we get a palindrome (699242996).

The spelling of 565220431 in words is "five hundred sixty-five million, two hundred twenty thousand, four hundred thirty-one".