205054579 has 2 divisors, whose sum is σ = 205054580. Its totient is φ = 205054578.

The previous prime is 205054567. The next prime is 205054583. The reversal of 205054579 is 975450502.

205054579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205054579 - 2⁵ = 205054547 is a prime.

It is not a weakly prime, because it can be changed into another prime (205054519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102527289 + 102527290.

It is an arithmetic number, because the mean of its divisors is an integer number (102527290).

Almost surely, 2^205054579 is an apocalyptic number.

205054579 is a deficient number, since it is larger than the sum of its proper divisors (1).

205054579 is an equidigital number, since it uses as much as digits as its factorization.

205054579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 205054579 is about 14319.7269177872. The cubic root of 205054579 is about 589.6891774674.

It can be divided in two parts, 2050545 and 79, that added together give a square (2050624 = 1432²).

The spelling of 205054579 in words is "two hundred five million, fifty-four thousand, five hundred seventy-nine".