204113542055 has 4 divisors (see below), whose sum is σ = 244936250472. Its totient is φ = 163290833640.

The previous prime is 204113542051. The next prime is 204113542063. The reversal of 204113542055 is 550245311402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 204113542055 - 2² = 204113542051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204113542051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20411354201 + ... + 20411354210.

It is an arithmetic number, because the mean of its divisors is an integer number (61234062618).

Almost surely, 2^204113542055 is an apocalyptic number.

204113542055 is a deficient number, since it is larger than the sum of its proper divisors (40822708417).

204113542055 is an equidigital number, since it uses as much as digits as its factorization.

204113542055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40822708416.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 204113542055 its reverse (550245311402), we get a palindrome (754358853457).

The spelling of 204113542055 in words is "two hundred four billion, one hundred thirteen million, five hundred forty-two thousand, fifty-five".