55840684 has 6 divisors (see below), whose sum is σ = 97721204. Its totient is φ = 27920340.

The previous prime is 55840679. The next prime is 55840721. The reversal of 55840684 is 48604855.

55840684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 6980082 + ... + 6980089.

Almost surely, 2^55840684 is an apocalyptic number.

It is an amenable number.

55840684 is a deficient number, since it is larger than the sum of its proper divisors (41880520).

55840684 is a wasteful number, since it uses less digits than its factorization.

55840684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13960175 (or 13960173 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 55840684 is about 7472.6624438683. The cubic root of 55840684 is about 382.2230817815.

The spelling of 55840684 in words is "fifty-five million, eight hundred forty thousand, six hundred eighty-four".