56116129 has 2 divisors, whose sum is σ = 56116130. Its totient is φ = 56116128.

The previous prime is 56116103. The next prime is 56116141. The reversal of 56116129 is 92161165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 270400 = 7473^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 56116129 - 2⁵ = 56116097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56116129.

It is not a weakly prime, because it can be changed into another prime (56116429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28058064 + 28058065.

It is an arithmetic number, because the mean of its divisors is an integer number (28058065).

Almost surely, 2^56116129 is an apocalyptic number.

It is an amenable number.

56116129 is a deficient number, since it is larger than the sum of its proper divisors (1).

56116129 is an equidigital number, since it uses as much as digits as its factorization.

56116129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 56116129 is about 7491.0699502808. The cubic root of 56116129 is about 382.8505144168.

The spelling of 56116129 in words is "fifty-six million, one hundred sixteen thousand, one hundred twenty-nine".