2560221017 has 2 divisors, whose sum is σ = 2560221018. Its totient is φ = 2560221016.

The previous prime is 2560220983. The next prime is 2560221077. The reversal of 2560221017 is 7101220652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1928000281 + 632220736 = 43909^2 + 25144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2560221017 is a prime.

It is not a weakly prime, because it can be changed into another prime (2560221077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280110508 + 1280110509.

It is an arithmetic number, because the mean of its divisors is an integer number (1280110509).

Almost surely, 2^2560221017 is an apocalyptic number.

It is an amenable number.

2560221017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560221017 is an equidigital number, since it uses as much as digits as its factorization.

2560221017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2560221017 is about 50598.6266315599. The cubic root of 2560221017 is about 1368.0201243078.

Adding to 2560221017 its reverse (7101220652), we get a palindrome (9661441669).

The spelling of 2560221017 in words is "two billion, five hundred sixty million, two hundred twenty-one thousand, seventeen".