56018129 has 2 divisors, whose sum is σ = 56018130. Its totient is φ = 56018128.

The previous prime is 56018117. The next prime is 56018153. The reversal of 56018129 is 92181065.

56018129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 9778129 = 6800^2 + 3127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56018129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56018095 and 56018104.

It is not a weakly prime, because it can be changed into another prime (56018029) 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, 28009064 + 28009065.

It is an arithmetic number, because the mean of its divisors is an integer number (28009065).

Almost surely, 2^56018129 is an apocalyptic number.

It is an amenable number.

56018129 is a deficient number, since it is larger than the sum of its proper divisors (1).

56018129 is an equidigital number, since it uses as much as digits as its factorization.

56018129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 56018129 is about 7484.5259702936. The cubic root of 56018129 is about 382.6275172542.

The spelling of 56018129 in words is "fifty-six million, eighteen thousand, one hundred twenty-nine".