225563 has 4 divisors (see below), whose sum is σ = 242928. Its totient is φ = 208200.

The previous prime is 225529. The next prime is 225569. The reversal of 225563 is 365522.

It is a happy number.

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 225563 - 2⁶ = 225499 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225569) 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, 8663 + ... + 8688.

It is an arithmetic number, because the mean of its divisors is an integer number (60732).

2²²⁵⁵⁶³ is an apocalyptic number.

225563 is a deficient number, since it is larger than the sum of its proper divisors (17365).

225563 is a wasteful number, since it uses less digits than its factorization.

225563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17364.

The product of its digits is 1800, while the sum is 23.

The square root of 225563 is about 474.9347323580. The cubic root of 225563 is about 60.8727077718.

The spelling of 225563 in words is "two hundred twenty-five thousand, five hundred sixty-three".