205255793 has 2 divisors, whose sum is σ = 205255794. Its totient is φ = 205255792.

The previous prime is 205255741. The next prime is 205255819. The reversal of 205255793 is 397552502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203262049 + 1993744 = 14257^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 205255793 - 2¹⁶ = 205190257 is a prime.

It is not a weakly prime, because it can be changed into another prime (205255723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102627896 + 102627897.

It is an arithmetic number, because the mean of its divisors is an integer number (102627897).

Almost surely, 2^205255793 is an apocalyptic number.

It is an amenable number.

205255793 is a deficient number, since it is larger than the sum of its proper divisors (1).

205255793 is an equidigital number, since it uses as much as digits as its factorization.

205255793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 205255793 is about 14326.7509575619. The cubic root of 205255793 is about 589.8819959346.

The spelling of 205255793 in words is "two hundred five million, two hundred fifty-five thousand, seven hundred ninety-three".