204035401553 has 4 divisors (see below), whose sum is σ = 204062444400. Its totient is φ = 204008358708.

The previous prime is 204035401481. The next prime is 204035401571. The reversal of 204035401553 is 355104530402.

It is a happy number.

204035401553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355104530402 = 2 ⋅177552265201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204035401553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204035401853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13510103 + ... + 13525196.

It is an arithmetic number, because the mean of its divisors is an integer number (51015611100).

Almost surely, 2^204035401553 is an apocalyptic number.

It is an amenable number.

204035401553 is a deficient number, since it is larger than the sum of its proper divisors (27042847).

204035401553 is an equidigital number, since it uses as much as digits as its factorization.

204035401553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27042846.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 204035401553 its reverse (355104530402), we get a palindrome (559139931955).

The spelling of 204035401553 in words is "two hundred four billion, thirty-five million, four hundred one thousand, five hundred fifty-three".