10556556 has 12 divisors (see below), whose sum is σ = 24631992. Its totient is φ = 3518848.

The previous prime is 10556549. The next prime is 10556569. The reversal of 10556556 is 65565501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10556556² = 222881749162272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439845 + ... + 439868.

It is an arithmetic number, because the mean of its divisors is an integer number (2052666).

Almost surely, 2^10556556 is an apocalyptic number.

It is an amenable number.

10556556 is an abundant number, since it is smaller than the sum of its proper divisors (14075436).

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

10556556 is a wasteful number, since it uses less digits than its factorization.

10556556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879720 (or 879718 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 10556556 is about 3249.0854097730. The cubic root of 10556556 is about 219.3684089058.

The spelling of 10556556 in words is "ten million, five hundred fifty-six thousand, five hundred fifty-six".