2228555 has 16 divisors (see below), whose sum is σ = 3132864. Its totient is φ = 1489920.

The previous prime is 2228549. The next prime is 2228573. The reversal of 2228555 is 5558222.

2228555 = T₃₀₉ + T₃₁₀ + ... + T₃₄₉.

It is not a de Polignac number, because 2228555 - 2⁸ = 2228299 is a prime.

It is a super-3 number, since 3×2228555³ = 33204070333110161625, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2⁶ + 2¹⁶ + 2¹⁷ + 8 + 5⁴ + 5⁷ + 5⁹ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (195804).

2^2228555 is an apocalyptic number.

2228555 is a deficient number, since it is larger than the sum of its proper divisors (904309).

2228555 is a wasteful number, since it uses less digits than its factorization.

2228555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its digits is 8000, while the sum is 29.

The square root of 2228555 is about 1492.8345521189. The cubic root of 2228555 is about 130.6194304074.

The spelling of 2228555 in words is "two million, two hundred twenty-eight thousand, five hundred fifty-five".