228625 has 16 divisors (see below), whose sum is σ = 299520. Its totient is φ = 174000.

The previous prime is 228619. The next prime is 228637. The reversal of 228625 is 526822.

It is not a de Polignac number, because 228625 - 2³ = 228617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 228625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3846 + ... + 3904.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2²²⁸⁶²⁵ is an apocalyptic number.

228625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228625 is a deficient number, since it is larger than the sum of its proper divisors (70895).

228625 is an equidigital number, since it uses as much as digits as its factorization.

228625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 95 counting only the distinct ones).

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

The square root of 228625 is about 478.1474667924. The cubic root of 228625 is about 61.1469181033.

The spelling of 228625 in words is "two hundred twenty-eight thousand, six hundred twenty-five".