563161 has 4 divisors (see below), whose sum is σ = 565812. Its totient is φ = 560512.

The previous prime is 563153. The next prime is 563183. The reversal of 563161 is 161365.

563161 is nontrivially palindromic in base 5.

563161 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 197136 = 605^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 563161 - 2³ = 563153 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (141453).

2⁵⁶³¹⁶¹ is an apocalyptic number.

It is an amenable number.

563161 is a deficient number, since it is larger than the sum of its proper divisors (2651).

563161 is a wasteful number, since it uses less digits than its factorization.

563161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 540, while the sum is 22.

The square root of 563161 is about 750.4405372846. The cubic root of 563161 is about 82.5805029934.

The spelling of 563161 in words is "five hundred sixty-three thousand, one hundred sixty-one".