2056706172259 has 2 divisors, whose sum is σ = 2056706172260. Its totient is φ = 2056706172258.

The previous prime is 2056706172217. The next prime is 2056706172317. The reversal of 2056706172259 is 9522716076502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056706172259 - 2²⁵ = 2056672617827 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056706172559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028353086129 + 1028353086130.

It is an arithmetic number, because the mean of its divisors is an integer number (1028353086130).

Almost surely, 2^{2056706172259} is an apocalyptic number.

2056706172259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056706172259 is an equidigital number, since it uses as much as digits as its factorization.

2056706172259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 2056706172259 in words is "two trillion, fifty-six billion, seven hundred six million, one hundred seventy-two thousand, two hundred fifty-nine".