205223255 has 16 divisors (see below), whose sum is σ = 256483584. Its totient is φ = 157463040.

The previous prime is 205223243. The next prime is 205223297. The reversal of 205223255 is 552322502.

It is a happy number.

It is not a de Polignac number, because 205223255 - 2¹² = 205219159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11657 + ... + 23373.

It is an arithmetic number, because the mean of its divisors is an integer number (16030224).

Almost surely, 2^205223255 is an apocalyptic number.

205223255 is a deficient number, since it is larger than the sum of its proper divisors (51260329).

205223255 is a wasteful number, since it uses less digits than its factorization.

205223255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11866.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 205223255 is about 14325.6153445498. The cubic root of 205223255 is about 589.8508241068.

Adding to 205223255 its reverse (552322502), we get a palindrome (757545757).

The spelling of 205223255 in words is "two hundred five million, two hundred twenty-three thousand, two hundred fifty-five".