2056560257 has 2 divisors, whose sum is σ = 2056560258. Its totient is φ = 2056560256.

The previous prime is 2056560131. The next prime is 2056560271. The reversal of 2056560257 is 7520656502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1935912001 + 120648256 = 43999^2 + 10984^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056560257 - 2¹⁶ = 2056494721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056560257.

It is not a weakly prime, because it can be changed into another prime (2056560277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028280128 + 1028280129.

It is an arithmetic number, because the mean of its divisors is an integer number (1028280129).

Almost surely, 2^2056560257 is an apocalyptic number.

It is an amenable number.

2056560257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056560257 is an equidigital number, since it uses as much as digits as its factorization.

2056560257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 2056560257 is about 45349.3137434295. The cubic root of 2056560257 is about 1271.6877259835.

The spelling of 2056560257 in words is "two billion, fifty-six million, five hundred sixty thousand, two hundred fifty-seven".