2056556 has 12 divisors (see below), whose sum is σ = 3648792. Its totient is φ = 1014048.

The previous prime is 2056553. The next prime is 2056573. The reversal of 2056556 is 6556502.

It is a super-2 number, since 2×2056556² = 8458845162272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2056553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (304066).

2^2056556 is an apocalyptic number.

It is an amenable number.

2056556 is a deficient number, since it is larger than the sum of its proper divisors (1592236).

2056556 is a wasteful number, since it uses less digits than its factorization.

2056556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120 (or 7118 counting only the distinct ones).

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

The square root of 2056556 is about 1434.0697333115. The cubic root of 2056556 is about 127.1686848535.

It can be divided in two parts, 205 and 6556, that multiplied together give a triangular number (1343980 = T₁₆₃₉).

The spelling of 2056556 in words is "two million, fifty-six thousand, five hundred fifty-six".