225776 has 20 divisors (see below), whose sum is σ = 444912. Its totient is φ = 110976.

The previous prime is 225769. The next prime is 225779. The reversal of 225776 is 677522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225779) by changing a digit.

225776 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 in 3 ways as a sum of consecutive naturals, for example, 1580 + ... + 1716.

2²²⁵⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

225776 is a deficient number, since it is larger than the sum of its proper divisors (219136).

225776 is a wasteful number, since it uses less digits than its factorization.

225776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 225776 is about 475.1589207834. The cubic root of 225776 is about 60.8918625204.

It can be divided in two parts, 225 and 776, that added together give a palindrome (1001).

The spelling of 225776 in words is "two hundred twenty-five thousand, seven hundred seventy-six".