565541361 has 24 divisors (see below), whose sum is σ = 1018465344. Its totient is φ = 293787360.

The previous prime is 565541351. The next prime is 565541369. The reversal of 565541361 is 163145565.

565541361 is a `hidden beast` number, since 56 + 5 + 541 + 3 + 61 = 666.

It is not a de Polignac number, because 565541361 - 2⁹ = 565540849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (565541369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407346 + ... + 408731.

It is an arithmetic number, because the mean of its divisors is an integer number (42436056).

Almost surely, 2^565541361 is an apocalyptic number.

It is an amenable number.

565541361 is a deficient number, since it is larger than the sum of its proper divisors (452923983).

565541361 is a wasteful number, since it uses less digits than its factorization.

565541361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816101 (or 816098 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 565541361 is about 23781.1135357451. The cubic root of 565541361 is about 826.9668948487.

The spelling of 565541361 in words is "five hundred sixty-five million, five hundred forty-one thousand, three hundred sixty-one".