228555 has 16 divisors (see below), whose sum is σ = 406560. Its totient is φ = 121824.

The previous prime is 228539. The next prime is 228559. The reversal of 228555 is 555822.

It is not a de Polignac number, because 228555 - 2⁴ = 228539 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁶ + 5⁴ + 8⁴ + 5⁷ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (228559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (25410).

2²²⁸⁵⁵⁵ is an apocalyptic number.

228555 is a deficient number, since it is larger than the sum of its proper divisors (178005).

228555 is a wasteful number, since it uses less digits than its factorization.

228555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1701 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 228555 is about 478.0742620138. The cubic root of 228555 is about 61.1406768477.

The spelling of 228555 in words is "two hundred twenty-eight thousand, five hundred fifty-five".