225860 has 24 divisors (see below), whose sum is σ = 495936. Its totient is φ = 86240.

The previous prime is 225859. The next prime is 225871. The reversal of 225860 is 68522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 215 + ... + 705.

It is an arithmetic number, because the mean of its divisors is an integer number (20664).

2²²⁵⁸⁶⁰ is an apocalyptic number.

225860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247968).

225860 is an abundant number, since it is smaller than the sum of its proper divisors (270076).

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

225860 is a wasteful number, since it uses less digits than its factorization.

225860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225860 is about 475.2473040429. The cubic root of 225860 is about 60.8994131934.

The spelling of 225860 in words is "two hundred twenty-five thousand, eight hundred sixty".