565430401 has 2 divisors, whose sum is σ = 565430402. Its totient is φ = 565430400.

The previous prime is 565430399. The next prime is 565430407. The reversal of 565430401 is 104034565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565250625 + 179776 = 23775^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 565430401 - 2¹ = 565430399 is a prime.

Together with 565430399, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 565430401.

It is not a weakly prime, because it can be changed into another prime (565430407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282715200 + 282715201.

It is an arithmetic number, because the mean of its divisors is an integer number (282715201).

Almost surely, 2^565430401 is an apocalyptic number.

It is an amenable number.

565430401 is a deficient number, since it is larger than the sum of its proper divisors (1).

565430401 is an equidigital number, since it uses as much as digits as its factorization.

565430401 is an evil number, because the sum of its binary digits is even.

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

The square root of 565430401 is about 23778.7804775602. The cubic root of 565430401 is about 826.9128072937.

Adding to 565430401 its reverse (104034565), we get a palindrome (669464966).

The spelling of 565430401 in words is "five hundred sixty-five million, four hundred thirty thousand, four hundred one".