2056656 has 40 divisors (see below), whose sum is σ = 6073024. Its totient is φ = 587520.

The previous prime is 2056631. The next prime is 2056661. The reversal of 2056656 is 6566502.

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 7 ways as a sum of consecutive naturals, for example, 2725 + ... + 3396.

2^2056656 is an apocalyptic number.

It is an amenable number.

2056656 is an abundant number, since it is smaller than the sum of its proper divisors (4016368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2056656 is a wasteful number, since it uses less digits than its factorization.

2056656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139 (or 6133 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2056656 is about 1434.1045986956. The cubic root of 2056656 is about 127.1707460118.

The spelling of 2056656 in words is "two million, fifty-six thousand, six hundred fifty-six".