2205420556 has 24 divisors (see below), whose sum is σ = 3912439104. Its totient is φ = 1087625040.

The previous prime is 2205420521. The next prime is 2205420587. The reversal of 2205420556 is 6550245022.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 208311 + ... + 218641.

It is an arithmetic number, because the mean of its divisors is an integer number (163018296).

Almost surely, 2^2205420556 is an apocalyptic number.

It is an amenable number.

2205420556 is a deficient number, since it is larger than the sum of its proper divisors (1707018548).

2205420556 is a wasteful number, since it uses less digits than its factorization.

2205420556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061 (or 11059 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2205420556 is about 46961.9053702041. The cubic root of 2205420556 is about 1301.6587417912.

Adding to 2205420556 its reverse (6550245022), we get a palindrome (8755665578).

The spelling of 2205420556 in words is "two billion, two hundred five million, four hundred twenty thousand, five hundred fifty-six".