2205556 has 12 divisors (see below), whose sum is σ = 3949792. Its totient is φ = 1077048.

The previous prime is 2205551. The next prime is 2205587. The reversal of 2205556 is 6555022.

2205556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2205556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6240 + ... + 6583.

2^2205556 is an apocalyptic number.

It is an amenable number.

2205556 is a deficient number, since it is larger than the sum of its proper divisors (1744236).

2205556 is a wasteful number, since it uses less digits than its factorization.

2205556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870 (or 12868 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2205556 is about 1485.1114436297. Note that the first 3 decimals coincide. The cubic root of 2205556 is about 130.1685387995.

It can be divided in two parts, 220 and 5556, that added together give a square (5776 = 76²).

The spelling of 2205556 in words is "two million, two hundred five thousand, five hundred fifty-six".