228055 has 8 divisors (see below), whose sum is σ = 289872. Its totient is φ = 171648.

The previous prime is 228049. The next prime is 228061. The reversal of 228055 is 550822.

228055 = T₁₀₈ + T₁₀₉ + ... + T₁₃₇.

It is an interprime number because it is at equal distance from previous prime (228049) and next prime (228061).

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

It is a cyclic number.

It is not a de Polignac number, because 228055 - 2⁵ = 228023 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (36234).

2²²⁸⁰⁵⁵ is an apocalyptic number.

228055 is a deficient number, since it is larger than the sum of its proper divisors (61817).

228055 is a wasteful number, since it uses less digits than its factorization.

228055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 228055 is about 477.5510443921. The cubic root of 228055 is about 61.0960593478.

Adding to 228055 its reverse (550822), we get a palindrome (778877).

The spelling of 228055 in words is "two hundred twenty-eight thousand, fifty-five".