56663000129 has 2 divisors, whose sum is σ = 56663000130. Its totient is φ = 56663000128.

The previous prime is 56663000099. The next prime is 56663000161. The reversal of 56663000129 is 92100036665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43837890625 + 12825109504 = 209375^2 + 113248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56663000129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56663000092 and 56663000101.

It is not a weakly prime, because it can be changed into another prime (56663002129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331500064 + 28331500065.

It is an arithmetic number, because the mean of its divisors is an integer number (28331500065).

Almost surely, 2^56663000129 is an apocalyptic number.

It is an amenable number.

56663000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

56663000129 is an equidigital number, since it uses as much as digits as its factorization.

56663000129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 56663000129 in words is "fifty-six billion, six hundred sixty-three million, one hundred twenty-nine", and thus it is an aban number.