565090111 has 4 divisors (see below), whose sum is σ = 566311072. Its totient is φ = 563869152.

The previous prime is 565090093. The next prime is 565090121. The reversal of 565090111 is 111090565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111090565 = 5 ⋅22218113.

It is a cyclic number.

It is not a de Polignac number, because 565090111 - 2⁵ = 565090079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565090111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565090121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609786 + ... + 610711.

It is an arithmetic number, because the mean of its divisors is an integer number (141577768).

Almost surely, 2^565090111 is an apocalyptic number.

565090111 is a deficient number, since it is larger than the sum of its proper divisors (1220961).

565090111 is a wasteful number, since it uses less digits than its factorization.

565090111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220960.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 565090111 is about 23771.6240715690. The cubic root of 565090111 is about 826.7468884781.

The spelling of 565090111 in words is "five hundred sixty-five million, ninety thousand, one hundred eleven".