565352863 has 4 divisors (see below), whose sum is σ = 578500648. Its totient is φ = 552205080.

The previous prime is 565352849. The next prime is 565352911. The reversal of 565352863 is 368253565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368253565 = 5 ⋅73650713.

It is a cyclic number.

It is not a de Polignac number, because 565352863 - 2²¹ = 563255711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 13147741 = 565352863 / (5 + 6 + 5 + 3 + 5 + 2 + 8 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565352803) 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, 6573828 + ... + 6573913.

It is an arithmetic number, because the mean of its divisors is an integer number (144625162).

Almost surely, 2^565352863 is an apocalyptic number.

565352863 is a deficient number, since it is larger than the sum of its proper divisors (13147785).

565352863 is a wasteful number, since it uses less digits than its factorization.

565352863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13147784.

The product of its digits is 648000, while the sum is 43.

The square root of 565352863 is about 23777.1500184526. The cubic root of 565352863 is about 826.8750071234.

The spelling of 565352863 in words is "five hundred sixty-five million, three hundred fifty-two thousand, eight hundred sixty-three".