2560881 has 8 divisors (see below), whose sum is σ = 3506944. Its totient is φ = 1661040.

The previous prime is 2560871. The next prime is 2560891. The reversal of 2560881 is 1880652.

2560881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2560871) and next prime (2560891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2560881 - 2⁵ = 2560849 is a prime.

It is a super-2 number, since 2×2560881² = 13116222992322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2560871) 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 7 ways as a sum of consecutive naturals, for example, 11425 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (438368).

2^2560881 is an apocalyptic number.

It is an amenable number.

2560881 is a deficient number, since it is larger than the sum of its proper divisors (946063).

2560881 is a wasteful number, since it uses less digits than its factorization.

2560881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23111.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2560881 is about 1600.2752888175. The cubic root of 2560881 is about 136.8137665261.

It can be divided in two parts, 25 and 60881, that added together give a palindrome (60906).

The spelling of 2560881 in words is "two million, five hundred sixty thousand, eight hundred eighty-one".