204435053 has 2 divisors, whose sum is σ = 204435054. Its totient is φ = 204435052.

The previous prime is 204435043. The next prime is 204435067. The reversal of 204435053 is 350534402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199430884 + 5004169 = 14122^2 + 2237^2 .

It is a cyclic number.

It is not a de Polignac number, because 204435053 - 2¹⁰ = 204434029 is a prime.

It is a super-2 number, since 2×204435053² = 83587381790225618, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204435043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102217526 + 102217527.

It is an arithmetic number, because the mean of its divisors is an integer number (102217527).

Almost surely, 2^204435053 is an apocalyptic number.

It is an amenable number.

204435053 is a deficient number, since it is larger than the sum of its proper divisors (1).

204435053 is an equidigital number, since it uses as much as digits as its factorization.

204435053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 204435053 is about 14298.0786471470. The cubic root of 204435053 is about 589.0947075847.

Adding to 204435053 its reverse (350534402), we get a palindrome (554969455).

The spelling of 204435053 in words is "two hundred four million, four hundred thirty-five thousand, fifty-three".