204271655 has 16 divisors (see below), whose sum is σ = 280376640. Its totient is φ = 139955712.

The previous prime is 204271649. The next prime is 204271687. The reversal of 204271655 is 556172402.

It is a cyclic number.

It is not a de Polignac number, because 204271655 - 2¹⁰ = 204270631 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76991 + ... + 79599.

It is an arithmetic number, because the mean of its divisors is an integer number (17523540).

Almost surely, 2^204271655 is an apocalyptic number.

204271655 is a deficient number, since it is larger than the sum of its proper divisors (76104985).

204271655 is a wasteful number, since it uses less digits than its factorization.

204271655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 204271655 is about 14292.3635204259. The cubic root of 204271655 is about 588.9377179492.

The spelling of 204271655 in words is "two hundred four million, two hundred seventy-one thousand, six hundred fifty-five".