2225556 has 30 divisors (see below), whose sum is σ = 5818890. Its totient is φ = 741744.

The previous prime is 2225543. The next prime is 2225557. The reversal of 2225556 is 6555222.

2225556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 980100 = 1116^2 + 990^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225557) 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 9 ways as a sum of consecutive naturals, for example, 3111 + ... + 3758.

It is an arithmetic number, because the mean of its divisors is an integer number (193963).

2^2225556 is an apocalyptic number.

It is an amenable number.

2225556 is an abundant number, since it is smaller than the sum of its proper divisors (3593334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2225556 is a wasteful number, since it uses less digits than its factorization.

2225556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885 (or 6874 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 2225556 is about 1491.8297489995. The cubic root of 2225556 is about 130.5608119273.

2225556 divided by its sum of digits (27) gives a palindrome (82428).

It can be divided in two parts, 222 and 5556, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 2225556 in words is "two million, two hundred twenty-five thousand, five hundred fifty-six".