565326641 has 6 divisors (see below), whose sum is σ = 621392226. Its totient is φ = 513933200.

The previous prime is 565326617. The next prime is 565326649. The reversal of 565326641 is 146623565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 396846241 + 168480400 = 19921^2 + 12980^2 .

It is not a de Polignac number, because 565326641 - 2⁶ = 565326577 is a prime.

It is a super-2 number, since 2×565326641² = 639188422048685762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 565326595 and 565326604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565326649) 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 5 ways as a sum of consecutive naturals, for example, 2335940 + ... + 2336181.

It is an arithmetic number, because the mean of its divisors is an integer number (103565371).

Almost surely, 2^565326641 is an apocalyptic number.

It is an amenable number.

565326641 is a deficient number, since it is larger than the sum of its proper divisors (56065585).

565326641 is a wasteful number, since it uses less digits than its factorization.

565326641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672143 (or 4672132 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 565326641 is about 23776.5986003045. The cubic root of 565326641 is about 826.8622229827.

The spelling of 565326641 in words is "five hundred sixty-five million, three hundred twenty-six thousand, six hundred forty-one".