225996 has 24 divisors (see below), whose sum is σ = 542640. Its totient is φ = 73152.

The previous prime is 225989. The next prime is 226001. The reversal of 225996 is 699522.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (22610).

2²²⁵⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

225996 is an abundant number, since it is smaller than the sum of its proper divisors (316644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225996 is a wasteful number, since it uses less digits than its factorization.

225996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 551 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 225996 is about 475.3903659100. The cubic root of 225996 is about 60.9116341243.

It can be divided in two parts, 225 and 996, that added together give a palindrome (1221).

The spelling of 225996 in words is "two hundred twenty-five thousand, nine hundred ninety-six".