225802 has 4 divisors (see below), whose sum is σ = 338706. Its totient is φ = 112900.

The previous prime is 225781. The next prime is 225809. The reversal of 225802 is 208522.

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

It can be written as a sum of positive squares in only one way, i.e., 130321 + 95481 = 361^2 + 309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225802.

It is not an unprimeable number, because it can be changed into a prime (225809) by changing a digit.

225802 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56449 + ... + 56452.

2²²⁵⁸⁰² is an apocalyptic number.

225802 is a deficient number, since it is larger than the sum of its proper divisors (112904).

225802 is a wasteful number, since it uses less digits than its factorization.

225802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112903.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 225802 is about 475.1862792632. The cubic root of 225802 is about 60.8941998335.

The spelling of 225802 in words is "two hundred twenty-five thousand, eight hundred two".