205066255 has 8 divisors (see below), whose sum is σ = 246204432. Its totient is φ = 163969728.

The previous prime is 205066237. The next prime is 205066261. The reversal of 205066255 is 552660502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205066255 - 2⁹ = 205065743 is a prime.

It is a Duffinian number.

It is a congruent 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, 1707 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (30775554).

Almost surely, 2^205066255 is an apocalyptic number.

205066255 is a deficient number, since it is larger than the sum of its proper divisors (41138177).

205066255 is a wasteful number, since it uses less digits than its factorization.

205066255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20825.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 205066255 is about 14320.1346013227. The cubic root of 205066255 is about 589.7003697398.

The spelling of 205066255 in words is "two hundred five million, sixty-six thousand, two hundred fifty-five".