2561876 has 12 divisors (see below), whose sum is σ = 4579008. Its totient is φ = 1253592.

The previous prime is 2561873. The next prime is 2561899. The reversal of 2561876 is 6781652.

2561876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561873) 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 3 ways as a sum of consecutive naturals, for example, 6626 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (381584).

2^2561876 is an apocalyptic number.

It is an amenable number.

2561876 is a deficient number, since it is larger than the sum of its proper divisors (2017132).

2561876 is a wasteful number, since it uses less digits than its factorization.

2561876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13678 (or 13676 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 2561876 is about 1600.5861426365. The cubic root of 2561876 is about 136.8314833549.

The spelling of 2561876 in words is "two million, five hundred sixty-one thousand, eight hundred seventy-six".