204808000051 has 2 divisors, whose sum is σ = 204808000052. Its totient is φ = 204808000050.

The previous prime is 204808000039. The next prime is 204808000079. The reversal of 204808000051 is 150000808402.

204808000051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (204808000079) can be obtained adding 204808000051 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204808000051 - 2¹³ = 204807991859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204807999983 and 204808000019.

It is not a weakly prime, because it can be changed into another prime (204808000031) 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 as a sum of consecutive naturals, namely, 102404000025 + 102404000026.

It is an arithmetic number, because the mean of its divisors is an integer number (102404000026).

Almost surely, 2^204808000051 is an apocalyptic number.

204808000051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204808000051 is an equidigital number, since it uses as much as digits as its factorization.

204808000051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 204808000051 its reverse (150000808402), we get a palindrome (354808808453).

The spelling of 204808000051 in words is "two hundred four billion, eight hundred eight million, fifty-one", and thus it is an aban number.