205057059 has 4 divisors (see below), whose sum is σ = 273409416. Its totient is φ = 136704704.

The previous prime is 205057049. The next prime is 205057081. The reversal of 205057059 is 950750502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205057059 - 2⁷ = 205056931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205057049) 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 3 ways as a sum of consecutive naturals, for example, 34176174 + ... + 34176179.

It is an arithmetic number, because the mean of its divisors is an integer number (68352354).

Almost surely, 2^205057059 is an apocalyptic number.

205057059 is a deficient number, since it is larger than the sum of its proper divisors (68352357).

205057059 is an equidigital number, since it uses as much as digits as its factorization.

205057059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68352356.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 205057059 is about 14319.8135113555. The cubic root of 205057059 is about 589.6915547585.

The spelling of 205057059 in words is "two hundred five million, fifty-seven thousand, fifty-nine".