2560171489 has 2 divisors, whose sum is σ = 2560171490. Its totient is φ = 2560171488.

The previous prime is 2560171459. The next prime is 2560171499. The reversal of 2560171489 is 9841710652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1353651264 + 1206520225 = 36792^2 + 34735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2560171489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2560171409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280085744 + 1280085745.

It is an arithmetic number, because the mean of its divisors is an integer number (1280085745).

Almost surely, 2^2560171489 is an apocalyptic number.

It is an amenable number.

2560171489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560171489 is an equidigital number, since it uses as much as digits as its factorization.

2560171489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2560171489 is about 50598.1372087946. The cubic root of 2560171489 is about 1368.0113027078.

The spelling of 2560171489 in words is "two billion, five hundred sixty million, one hundred seventy-one thousand, four hundred eighty-nine".