2500556 has 12 divisors (see below), whose sum is σ = 4396392. Its totient is φ = 1244448.

The previous prime is 2500543. The next prime is 2500559. The reversal of 2500556 is 6550052.

2500556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2500559) 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, 410 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (366366).

2^2500556 is an apocalyptic number.

It is an amenable number.

2500556 is a deficient number, since it is larger than the sum of its proper divisors (1895836).

2500556 is a wasteful number, since it uses less digits than its factorization.

2500556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2500556 is about 1581.3146429474. The cubic root of 2500556 is about 135.7309415252.

The spelling of 2500556 in words is "two million, five hundred thousand, five hundred fifty-six".