205241255 has 16 divisors (see below), whose sum is σ = 261797184. Its totient is φ = 153930240.

The previous prime is 205241251. The next prime is 205241261. The reversal of 205241255 is 552142502.

It is not a de Polignac number, because 205241255 - 2² = 205241251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205241251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17765 + ... + 26945.

It is an arithmetic number, because the mean of its divisors is an integer number (16362324).

Almost surely, 2^205241255 is an apocalyptic number.

205241255 is a deficient number, since it is larger than the sum of its proper divisors (56555929).

205241255 is a wasteful number, since it uses less digits than its factorization.

205241255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 205241255 is about 14326.2435760390. The cubic root of 205241255 is about 589.8680687484.

Adding to 205241255 its reverse (552142502), we get a palindrome (757383757).

The spelling of 205241255 in words is "two hundred five million, two hundred forty-one thousand, two hundred fifty-five".