225858 has 8 divisors (see below), whose sum is σ = 451728. Its totient is φ = 75284.

The previous prime is 225839. The next prime is 225859. The reversal of 225858 is 858522.

It is a sphenic number, since it is the product of 3 distinct primes.

225858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (225859) by changing a digit.

225858 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, 18816 + ... + 18827.

It is an arithmetic number, because the mean of its divisors is an integer number (56466).

2²²⁵⁸⁵⁸ is an apocalyptic number.

225858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225858 is a wasteful number, since it uses less digits than its factorization.

225858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37648.

The product of its digits is 6400, while the sum is 30.

The square root of 225858 is about 475.2451998706. The cubic root of 225858 is about 60.8992334372.

The spelling of 225858 in words is "two hundred twenty-five thousand, eight hundred fifty-eight".