204450082513 has 2 divisors, whose sum is σ = 204450082514. Its totient is φ = 204450082512.

The previous prime is 204450082511. The next prime is 204450082561. The reversal of 204450082513 is 315280054402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194698915009 + 9751167504 = 441247^2 + 98748^2 .

It is a cyclic number.

It is not a de Polignac number, because 204450082513 - 2¹ = 204450082511 is a prime.

Together with 204450082511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204450082511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102225041256 + 102225041257.

It is an arithmetic number, because the mean of its divisors is an integer number (102225041257).

Almost surely, 2^204450082513 is an apocalyptic number.

It is an amenable number.

204450082513 is a deficient number, since it is larger than the sum of its proper divisors (1).

204450082513 is an equidigital number, since it uses as much as digits as its factorization.

204450082513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 204450082513 in words is "two hundred four billion, four hundred fifty million, eighty-two thousand, five hundred thirteen".