205155353 has 12 divisors (see below), whose sum is σ = 222806160. Its totient is φ = 188815536.

The previous prime is 205155311. The next prime is 205155373. The reversal of 205155353 is 353551502.

It is not a de Polignac number, because 205155353 - 2¹⁸ = 204893209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205155373) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 62450 + ... + 65652.

It is an arithmetic number, because the mean of its divisors is an integer number (18567180).

Almost surely, 2^205155353 is an apocalyptic number.

It is an amenable number.

205155353 is a deficient number, since it is larger than the sum of its proper divisors (17650807).

205155353 is a wasteful number, since it uses less digits than its factorization.

205155353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 205155353 is about 14323.2451979291. The cubic root of 205155353 is about 589.7857624925.

The spelling of 205155353 in words is "two hundred five million, one hundred fifty-five thousand, three hundred fifty-three".