205450256 has 30 divisors (see below), whose sum is σ = 437541006. Its totient is φ = 93385600.

The previous prime is 205450243. The next prime is 205450337. The reversal of 205450256 is 652054502.

It can be written as a sum of positive squares in only one way, i.e., 198246400 + 7203856 = 14080^2 + 2684^2 .

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 5 ways as a sum of consecutive naturals, for example, 51125 + ... + 54996.

Almost surely, 2^205450256 is an apocalyptic number.

It is an amenable number.

205450256 is an abundant number, since it is smaller than the sum of its proper divisors (232090750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205450256 is a wasteful number, since it uses less digits than its factorization.

205450256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106151 (or 106134 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 205450256 is about 14333.5360605818. The cubic root of 205450256 is about 590.0682253767.

The spelling of 205450256 in words is "two hundred five million, four hundred fifty thousand, two hundred fifty-six".