565220256233 has 2 divisors, whose sum is σ = 565220256234. Its totient is φ = 565220256232.

The previous prime is 565220256199. The next prime is 565220256299. The reversal of 565220256233 is 332652022565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451949641984 + 113270614249 = 672272^2 + 336557^2 .

It is a cyclic number.

It is not a de Polignac number, because 565220256233 - 2¹⁸ = 565219994089 is a prime.

It is not a weakly prime, because it can be changed into another prime (565220253233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282610128116 + 282610128117.

It is an arithmetic number, because the mean of its divisors is an integer number (282610128117).

Almost surely, 2^565220256233 is an apocalyptic number.

It is an amenable number.

565220256233 is a deficient number, since it is larger than the sum of its proper divisors (1).

565220256233 is an equidigital number, since it uses as much as digits as its factorization.

565220256233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 565220256233 its reverse (332652022565), we get a palindrome (897872278798).

The spelling of 565220256233 in words is "five hundred sixty-five billion, two hundred twenty million, two hundred fifty-six thousand, two hundred thirty-three".