565536401 has 2 divisors, whose sum is σ = 565536402. Its totient is φ = 565536400.

The previous prime is 565536343. The next prime is 565536403. The reversal of 565536401 is 104635565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337677376 + 227859025 = 18376^2 + 15095^2 .

It is a cyclic number.

It is not a de Polignac number, because 565536401 - 2²² = 561342097 is a prime.

Together with 565536403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (565536403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282768200 + 282768201.

It is an arithmetic number, because the mean of its divisors is an integer number (282768201).

Almost surely, 2^565536401 is an apocalyptic number.

It is an amenable number.

565536401 is a deficient number, since it is larger than the sum of its proper divisors (1).

565536401 is an equidigital number, since it uses as much as digits as its factorization.

565536401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 565536401 is about 23781.0092510810. The cubic root of 565536401 is about 826.9644772432.

The spelling of 565536401 in words is "five hundred sixty-five million, five hundred thirty-six thousand, four hundred one".