13875556 has 6 divisors (see below), whose sum is σ = 24282230. Its totient is φ = 6937776.

The previous prime is 13875551. The next prime is 13875557. The reversal of 13875556 is 65557831.

It can be written as a sum of positive squares in only one way, i.e., 10692900 + 3182656 = 3270^2 + 1784^2 .

It is not an unprimeable number, because it can be changed into a prime (13875551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1734441 + ... + 1734448.

Almost surely, 2^13875556 is an apocalyptic number.

It is an amenable number.

13875556 is a deficient number, since it is larger than the sum of its proper divisors (10406674).

13875556 is a wasteful number, since it uses less digits than its factorization.

13875556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468893 (or 3468891 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 13875556 is about 3724.9907382435. The cubic root of 13875556 is about 240.2979863456.

The spelling of 13875556 in words is "thirteen million, eight hundred seventy-five thousand, five hundred fifty-six".