205655056 has 20 divisors (see below), whose sum is σ = 399553792. Its totient is φ = 102544416.

The previous prime is 205655041. The next prime is 205655077. The reversal of 205655056 is 650556502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11640 + ... + 23383.

Almost surely, 2^205655056 is an apocalyptic number.

It is an amenable number.

205655056 is a deficient number, since it is larger than the sum of its proper divisors (193898736).

205655056 is a wasteful number, since it uses less digits than its factorization.

205655056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35398 (or 35392 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 205655056 is about 14340.6783661025. The cubic root of 205655056 is about 590.2642271447.

The spelling of 205655056 in words is "two hundred five million, six hundred fifty-five thousand, fifty-six".