228755 has 4 divisors (see below), whose sum is σ = 274512. Its totient is φ = 183000.

The previous prime is 228751. The next prime is 228757. The reversal of 228755 is 557822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557822 = 2 ⋅278911.

It is not a de Polignac number, because 228755 - 2² = 228751 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228755.

It is not an unprimeable number, because it can be changed into a prime (228751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22871 + ... + 22880.

It is an arithmetic number, because the mean of its divisors is an integer number (68628).

2²²⁸⁷⁵⁵ is an apocalyptic number.

228755 is a deficient number, since it is larger than the sum of its proper divisors (45757).

228755 is an equidigital number, since it uses as much as digits as its factorization.

228755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45756.

The product of its digits is 5600, while the sum is 29.

The square root of 228755 is about 478.2833887979. The cubic root of 228755 is about 61.1585056275.

The spelling of 228755 in words is "two hundred twenty-eight thousand, seven hundred fifty-five".