565506663625243 has 4 divisors (see below), whose sum is σ = 566423206030440. Its totient is φ = 564590121220048.

The previous prime is 565506663625229. The next prime is 565506663625247. The reversal of 565506663625243 is 342526366605565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 565506663625243 - 2⁹ = 565506663624731 is a prime.

It is a super-3 number, since 3×565506663625243³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565506663625247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458271201673 + ... + 458271202906.

It is an arithmetic number, because the mean of its divisors is an integer number (141605801507610).

Almost surely, 2^{565506663625243} is an apocalyptic number.

565506663625243 is a deficient number, since it is larger than the sum of its proper divisors (916542405197).

565506663625243 is an equidigital number, since it uses as much as digits as its factorization.

565506663625243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916542405196.

The product of its (nonzero) digits is 699840000, while the sum is 64.

The spelling of 565506663625243 in words is "five hundred sixty-five trillion, five hundred six billion, six hundred sixty-three million, six hundred twenty-five thousand, two hundred forty-three".