565434505109 has 2 divisors, whose sum is σ = 565434505110. Its totient is φ = 565434505108.

The previous prime is 565434504983. The next prime is 565434505147. The reversal of 565434505109 is 901505434565.

565434505109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425743200100 + 139691305009 = 652490^2 + 373753^2 .

It is a cyclic number.

It is not a de Polignac number, because 565434505109 - 2¹⁶ = 565434439573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565434507109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282717252554 + 282717252555.

It is an arithmetic number, because the mean of its divisors is an integer number (282717252555).

Almost surely, 2^565434505109 is an apocalyptic number.

It is an amenable number.

565434505109 is a deficient number, since it is larger than the sum of its proper divisors (1).

565434505109 is an equidigital number, since it uses as much as digits as its factorization.

565434505109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 565434505109 in words is "five hundred sixty-five billion, four hundred thirty-four million, five hundred five thousand, one hundred nine".