204144225553 has 2 divisors, whose sum is σ = 204144225554. Its totient is φ = 204144225552.

The previous prime is 204144225541. The next prime is 204144225557. The reversal of 204144225553 is 355522441402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201786928849 + 2357296704 = 449207^2 + 48552^2 .

It is a cyclic number.

It is not a de Polignac number, because 204144225553 - 2²¹ = 204142128401 is a prime.

It is not a weakly prime, because it can be changed into another prime (204144225557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102072112776 + 102072112777.

It is an arithmetic number, because the mean of its divisors is an integer number (102072112777).

Almost surely, 2^204144225553 is an apocalyptic number.

It is an amenable number.

204144225553 is a deficient number, since it is larger than the sum of its proper divisors (1).

204144225553 is an equidigital number, since it uses as much as digits as its factorization.

204144225553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 204144225553 its reverse (355522441402), we get a palindrome (559666666955).

The spelling of 204144225553 in words is "two hundred four billion, one hundred forty-four million, two hundred twenty-five thousand, five hundred fifty-three".