55543688 has 16 divisors (see below), whose sum is σ = 109626000. Its totient is φ = 26310096.

The previous prime is 55543687. The next prime is 55543703. The reversal of 55543688 is 88634555.

55543688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55543687) 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 in 3 ways as a sum of consecutive naturals, for example, 182558 + ... + 182861.

It is an arithmetic number, because the mean of its divisors is an integer number (6851625).

Almost surely, 2^55543688 is an apocalyptic number.

It is an amenable number.

55543688 is a deficient number, since it is larger than the sum of its proper divisors (54082312).

55543688 is a wasteful number, since it uses less digits than its factorization.

55543688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365444 (or 365440 counting only the distinct ones).

The product of its digits is 576000, while the sum is 44.

The square root of 55543688 is about 7452.7637826514. The cubic root of 55543688 is about 381.5442423298.

The spelling of 55543688 in words is "fifty-five million, five hundred forty-three thousand, six hundred eighty-eight".