2056171459 has 2 divisors, whose sum is σ = 2056171460. Its totient is φ = 2056171458.

The previous prime is 2056171451. The next prime is 2056171477. The reversal of 2056171459 is 9541716502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056171459 - 2³ = 2056171451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056171451) 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, 1028085729 + 1028085730.

It is an arithmetic number, because the mean of its divisors is an integer number (1028085730).

Almost surely, 2^2056171459 is an apocalyptic number.

2056171459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056171459 is an equidigital number, since it uses as much as digits as its factorization.

2056171459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2056171459 is about 45345.0268386733. The cubic root of 2056171459 is about 1271.6075823223.

The spelling of 2056171459 in words is "two billion, fifty-six million, one hundred seventy-one thousand, four hundred fifty-nine".