2625556 has 6 divisors (see below), whose sum is σ = 4594730. Its totient is φ = 1312776.

The previous prime is 2625551. The next prime is 2625563. The reversal of 2625556 is 6555262.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 1156 = 1620^2 + 34^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328191 + ... + 328198.

2^2625556 is an apocalyptic number.

It is an amenable number.

2625556 is a deficient number, since it is larger than the sum of its proper divisors (1969174).

2625556 is a wasteful number, since it uses less digits than its factorization.

2625556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656393 (or 656391 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 2625556 is about 1620.3567508422. The cubic root of 2625556 is about 137.9559475718.

The spelling of 2625556 in words is "two million, six hundred twenty-five thousand, five hundred fifty-six".