225826 has 4 divisors (see below), whose sum is σ = 338742. Its totient is φ = 112912.

The previous prime is 225821. The next prime is 225829. The reversal of 225826 is 628522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 628522 = 2 ⋅314261.

It can be written as a sum of positive squares in only one way, i.e., 160801 + 65025 = 401^2 + 255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225826.

It is not an unprimeable number, because it can be changed into a prime (225821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56455 + ... + 56458.

2²²⁵⁸²⁶ is an apocalyptic number.

225826 is a deficient number, since it is larger than the sum of its proper divisors (112916).

225826 is a wasteful number, since it uses less digits than its factorization.

225826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112915.

The product of its digits is 1920, while the sum is 25.

The square root of 225826 is about 475.2115318466. The cubic root of 225826 is about 60.8963571941.

The spelling of 225826 in words is "two hundred twenty-five thousand, eight hundred twenty-six".