10256556 has 12 divisors (see below), whose sum is σ = 23931992. Its totient is φ = 3418848.

The previous prime is 10256539. The next prime is 10256557. The reversal of 10256556 is 65565201.

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

It is a super-2 number, since 2×10256556² = 210393881962272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10256557) 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, 427345 + ... + 427368.

Almost surely, 2^10256556 is an apocalyptic number.

It is an amenable number.

10256556 is an abundant number, since it is smaller than the sum of its proper divisors (13675436).

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

10256556 is a wasteful number, since it uses less digits than its factorization.

10256556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854720 (or 854718 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 10256556 is about 3202.5858302316. The cubic root of 10256556 is about 217.2703772969.

The spelling of 10256556 in words is "ten million, two hundred fifty-six thousand, five hundred fifty-six".