13680052 has 12 divisors (see below), whose sum is σ = 24712576. Its totient is φ = 6619320.

The previous prime is 13680041. The next prime is 13680061. The reversal of 13680052 is 25008631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13679999 and 13680026.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 55038 + ... + 55285.

Almost surely, 2^13680052 is an apocalyptic number.

It is an amenable number.

13680052 is a deficient number, since it is larger than the sum of its proper divisors (11032524).

13680052 is a wasteful number, since it uses less digits than its factorization.

13680052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110358 (or 110356 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13680052 is about 3698.6554313696. The cubic root of 13680052 is about 239.1640593197.

Adding to 13680052 its reverse (25008631), we get a palindrome (38688683).

The spelling of 13680052 in words is "thirteen million, six hundred eighty thousand, fifty-two".