204555049 has 2 divisors, whose sum is σ = 204555050. Its totient is φ = 204555048.

The previous prime is 204555023. The next prime is 204555061. The reversal of 204555049 is 940555402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190440000 + 14115049 = 13800^2 + 3757^2 .

It is a cyclic number.

It is not a de Polignac number, because 204555049 - 2¹³ = 204546857 is a prime.

It is not a weakly prime, because it can be changed into another prime (204555089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102277524 + 102277525.

It is an arithmetic number, because the mean of its divisors is an integer number (102277525).

Almost surely, 2^204555049 is an apocalyptic number.

It is an amenable number.

204555049 is a deficient number, since it is larger than the sum of its proper divisors (1).

204555049 is an equidigital number, since it uses as much as digits as its factorization.

204555049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 204555049 is about 14302.2742597113. The cubic root of 204555049 is about 589.2099441539.

The spelling of 204555049 in words is "two hundred four million, five hundred fifty-five thousand, forty-nine".