2561008 has 20 divisors (see below), whose sum is σ = 5038120. Its totient is φ = 1260864.

The previous prime is 2560997. The next prime is 2561017. The reversal of 2561008 is 8001652.

It is a happy number.

2561008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2561008.

It is a congruent number.

It is an unprimeable number.

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, 123 + ... + 2266.

It is an arithmetic number, because the mean of its divisors is an integer number (251906).

2^2561008 is an apocalyptic number.

It is an amenable number.

2561008 is a deficient number, since it is larger than the sum of its proper divisors (2477112).

2561008 is a wasteful number, since it uses less digits than its factorization.

2561008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2561008 is about 1600.3149689983. The cubic root of 2561008 is about 136.8160281255.

The spelling of 2561008 in words is "two million, five hundred sixty-one thousand, eight".