565320431 has 8 divisors (see below), whose sum is σ = 644619024. Its totient is φ = 491137920.

The previous prime is 565320421. The next prime is 565320439. The reversal of 565320431 is 134023565.

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

It is a de Polignac number, because none of the positive numbers 2^k-565320431 is a prime.

It is a super-2 number, since 2×565320431² = 639174379412051522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565320394 and 565320403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565320439) 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, 1278785 + ... + 1279226.

It is an arithmetic number, because the mean of its divisors is an integer number (80577378).

Almost surely, 2^565320431 is an apocalyptic number.

565320431 is a deficient number, since it is larger than the sum of its proper divisors (79298593).

565320431 is a wasteful number, since it uses less digits than its factorization.

565320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558041.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 565320431 is about 23776.4680093575. The cubic root of 565320431 is about 826.8591953329.

Adding to 565320431 its reverse (134023565), we get a palindrome (699343996).

The spelling of 565320431 in words is "five hundred sixty-five million, three hundred twenty thousand, four hundred thirty-one".