205224256 has 28 divisors (see below), whose sum is σ = 409994100. Its totient is φ = 101918720.

The previous prime is 205224233. The next prime is 205224259. The reversal of 205224256 is 652422502.

It can be written as a sum of positive squares in 2 ways, for example, as 60840000 + 144384256 = 7800^2 + 12016^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205224259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225 + ... + 20296.

Almost surely, 2^205224256 is an apocalyptic number.

It is an amenable number.

205224256 is a deficient number, since it is larger than the sum of its proper divisors (204769844).

205224256 is a wasteful number, since it uses less digits than its factorization.

205224256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21682 (or 21672 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 205224256 is about 14325.6502819244. The cubic root of 205224256 is about 589.8517831269.

Adding to 205224256 its reverse (652422502), we get a palindrome (857646758).

The spelling of 205224256 in words is "two hundred five million, two hundred twenty-four thousand, two hundred fifty-six".