225863 has 4 divisors (see below), whose sum is σ = 246408. Its totient is φ = 205320.

The previous prime is 225859. The next prime is 225871. The reversal of 225863 is 368522.

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

It is a cyclic number.

It is not a de Polignac number, because 225863 - 2² = 225859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225163) 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, 10256 + ... + 10277.

It is an arithmetic number, because the mean of its divisors is an integer number (61602).

2²²⁵⁸⁶³ is an apocalyptic number.

225863 is a deficient number, since it is larger than the sum of its proper divisors (20545).

225863 is a wasteful number, since it uses less digits than its factorization.

225863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20544.

The product of its digits is 2880, while the sum is 26.

The square root of 225863 is about 475.2504602838. The cubic root of 225863 is about 60.8996828256.

It can be divided in two parts, 22 and 5863, that added together give a palindrome (5885).

The spelling of 225863 in words is "two hundred twenty-five thousand, eight hundred sixty-three".