2560857 has 12 divisors (see below), whose sum is σ = 3698064. Its totient is φ = 1575600.

The previous prime is 2560849. The next prime is 2560871. The reversal of 2560857 is 7580652.

It is a happy number.

2560857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2560857 - 2³ = 2560849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2560837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2019 + ... + 3032.

It is an arithmetic number, because the mean of its divisors is an integer number (308172).

2^2560857 is an apocalyptic number.

It is an amenable number.

2560857 is a deficient number, since it is larger than the sum of its proper divisors (1137207).

2560857 is a wasteful number, since it uses less digits than its factorization.

2560857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 2560857 is about 1600.2677900901. The cubic root of 2560857 is about 136.8133391288.

The spelling of 2560857 in words is "two million, five hundred sixty thousand, eight hundred fifty-seven".