5556681 has 24 divisors (see below), whose sum is σ = 8968960. Its totient is φ = 3417552.

The previous prime is 5556667. The next prime is 5556703. The reversal of 5556681 is 1866555.

It is not a de Polignac number, because 5556681 - 2⁹ = 5556169 is a prime.

It is a super-2 number, since 2×5556681² = 61753407471522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5555681) 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 23 ways as a sum of consecutive naturals, for example, 2280 + ... + 4038.

Almost surely, 2^5556681 is an apocalyptic number.

It is an amenable number.

5556681 is a deficient number, since it is larger than the sum of its proper divisors (3412279).

5556681 is a wasteful number, since it uses less digits than its factorization.

5556681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1775 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 5556681 is about 2357.2613346848. The cubic root of 5556681 is about 177.1217203548.

The spelling of 5556681 in words is "five million, five hundred fifty-six thousand, six hundred eighty-one".