565520113 has 24 divisors (see below), whose sum is σ = 632174400. Its totient is φ = 504810240.

The previous prime is 565520101. The next prime is 565520129. The reversal of 565520113 is 311025565.

565520113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-565520113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565520143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990118 + ... + 990688.

It is an arithmetic number, because the mean of its divisors is an integer number (26340600).

Almost surely, 2^565520113 is an apocalyptic number.

It is an amenable number.

565520113 is a deficient number, since it is larger than the sum of its proper divisors (66654287).

565520113 is a wasteful number, since it uses less digits than its factorization.

565520113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 565520113 is about 23780.6667904834. Note that the first 3 decimals coincide. The cubic root of 565520113 is about 826.9565380391.

Adding to 565520113 its reverse (311025565), we get a palindrome (876545678).

The spelling of 565520113 in words is "five hundred sixty-five million, five hundred twenty thousand, one hundred thirteen".