205304255 has 16 divisors (see below), whose sum is σ = 265809600. Its totient is φ = 151327488.

The previous prime is 205304243. The next prime is 205304273. The reversal of 205304255 is 552403502.

It is not a de Polignac number, because 205304255 - 2¹² = 205300159 is a prime.

It is a super-2 number, since 2×205304255² = 84299674242210050, which contains 22 as substring.

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, 36299 + ... + 41571.

It is an arithmetic number, because the mean of its divisors is an integer number (16613100).

Almost surely, 2^205304255 is an apocalyptic number.

205304255 is a deficient number, since it is larger than the sum of its proper divisors (60505345).

205304255 is a wasteful number, since it uses less digits than its factorization.

205304255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890.

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

The square root of 205304255 is about 14328.4421693358. The cubic root of 205304255 is about 589.9284170551.

Adding to 205304255 its reverse (552403502), we get a palindrome (757707757).

The spelling of 205304255 in words is "two hundred five million, three hundred four thousand, two hundred fifty-five".