2560556 has 6 divisors (see below), whose sum is σ = 4480980. Its totient is φ = 1280276.

The previous prime is 2560549. The next prime is 2560583. The reversal of 2560556 is 6550652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320066 + ... + 320073.

It is an arithmetic number, because the mean of its divisors is an integer number (746830).

2^2560556 is an apocalyptic number.

It is an amenable number.

2560556 is a deficient number, since it is larger than the sum of its proper divisors (1920424).

2560556 is a wasteful number, since it uses less digits than its factorization.

2560556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640143 (or 640141 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2560556 is about 1600.1737405669. The cubic root of 2560556 is about 136.8079786279.

The spelling of 2560556 in words is "two million, five hundred sixty thousand, five hundred fifty-six".