2560849 has 2 divisors, whose sum is σ = 2560850. Its totient is φ = 2560848.

The previous prime is 2560847. The next prime is 2560871. The reversal of 2560849 is 9480652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 1254400 = 1143^2 + 1120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2560849 - 2¹ = 2560847 is a prime.

Together with 2560847, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2560847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280424 + 1280425.

It is an arithmetic number, because the mean of its divisors is an integer number (1280425).

2^2560849 is an apocalyptic number.

It is an amenable number.

2560849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560849 is an equidigital number, since it uses as much as digits as its factorization.

2560849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2560849 is about 1600.2652905065. The cubic root of 2560849 is about 136.8131966625.

The spelling of 2560849 in words is "two million, five hundred sixty thousand, eight hundred forty-nine".