204863055 has 16 divisors (see below), whose sum is σ = 327966720. Its totient is φ = 109198368.

The previous prime is 204863027. The next prime is 204863077. The reversal of 204863055 is 550368402.

It is not a de Polignac number, because 204863055 - 2⁵ = 204863023 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, 38274 + ... + 43296.

It is an arithmetic number, because the mean of its divisors is an integer number (20497920).

Almost surely, 2^204863055 is an apocalyptic number.

204863055 is a deficient number, since it is larger than the sum of its proper divisors (123103665).

204863055 is a wasteful number, since it uses less digits than its factorization.

204863055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 204863055 is about 14313.0379374890. The cubic root of 204863055 is about 589.5055274830.

The spelling of 204863055 in words is "two hundred four million, eight hundred sixty-three thousand, fifty-five".