565255445 has 4 divisors (see below), whose sum is σ = 678306540. Its totient is φ = 452204352.

The previous prime is 565255433. The next prime is 565255447. The reversal of 565255445 is 544552565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544552565 = 5 ⋅108910513.

It can be written as a sum of positive squares in 2 ways, for example, as 281467729 + 283787716 = 16777^2 + 16846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565255445 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565255447) 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 3 ways as a sum of consecutive naturals, for example, 56525540 + ... + 56525549.

It is an arithmetic number, because the mean of its divisors is an integer number (169576635).

Almost surely, 2^565255445 is an apocalyptic number.

It is an amenable number.

565255445 is a deficient number, since it is larger than the sum of its proper divisors (113051095).

565255445 is a wasteful number, since it uses less digits than its factorization.

565255445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113051094.

The product of its digits is 600000, while the sum is 41.

The square root of 565255445 is about 23775.1013667660. The cubic root of 565255445 is about 826.8275104525.

The spelling of 565255445 in words is "five hundred sixty-five million, two hundred fifty-five thousand, four hundred forty-five".