228817055 has 4 divisors (see below), whose sum is σ = 274580472. Its totient is φ = 183053640.

The previous prime is 228817033. The next prime is 228817097. The reversal of 228817055 is 550718822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 228817055 - 2⁸ = 228816799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22881701 + ... + 22881710.

It is an arithmetic number, because the mean of its divisors is an integer number (68645118).

Almost surely, 2^228817055 is an apocalyptic number.

228817055 is a deficient number, since it is larger than the sum of its proper divisors (45763417).

228817055 is an equidigital number, since it uses as much as digits as its factorization.

228817055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45763416.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 228817055 is about 15126.7000697442. The cubic root of 228817055 is about 611.6403533967.

The spelling of 228817055 in words is "two hundred twenty-eight million, eight hundred seventeen thousand, fifty-five".