228315555 has 48 divisors (see below), whose sum is σ = 427635936. Its totient is φ = 112020480.

The previous prime is 228315551. The next prime is 228315583. The reversal of 228315555 is 555513822.

228315555 is a `hidden beast` number, since 22 + 83 + 1 + 5 + 555 = 666.

It is not a de Polignac number, because 228315555 - 2² = 228315551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228315551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 258715 + ... + 259595.

It is an arithmetic number, because the mean of its divisors is an integer number (8909082).

Almost surely, 2^228315555 is an apocalyptic number.

228315555 is a deficient number, since it is larger than the sum of its proper divisors (199320381).

228315555 is a wasteful number, since it uses less digits than its factorization.

228315555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1345 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 228315555 is about 15110.1143278269. The cubic root of 228315555 is about 611.1931810133.

The spelling of 228315555 in words is "two hundred twenty-eight million, three hundred fifteen thousand, five hundred fifty-five".