2056289 has 2 divisors, whose sum is σ = 2056290. Its totient is φ = 2056288.

The previous prime is 2056279. The next prime is 2056319. The reversal of 2056289 is 9826502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 48400 = 1417^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056289 - 2¹⁶ = 1990753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2056279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028144 + 1028145.

It is an arithmetic number, because the mean of its divisors is an integer number (1028145).

2^2056289 is an apocalyptic number.

It is an amenable number.

2056289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056289 is an equidigital number, since it uses as much as digits as its factorization.

2056289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2056289 is about 1433.9766385824. The cubic root of 2056289 is about 127.1631812335.

The spelling of 2056289 in words is "two million, fifty-six thousand, two hundred eighty-nine".