55605843 has 12 divisors (see below), whose sum is σ = 80458560. Its totient is φ = 37006416.

The previous prime is 55605839. The next prime is 55605859. The reversal of 55605843 is 34850655.

55605843 is a `hidden beast` number, since 5 + 5 + 605 + 8 + 43 = 666.

55605843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55605843 - 2² = 55605839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55605798 and 55605807.

It is not an unprimeable number, because it can be changed into a prime (55605863) 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 11 ways as a sum of consecutive naturals, for example, 478 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (6704880).

Almost surely, 2^55605843 is an apocalyptic number.

55605843 is a deficient number, since it is larger than the sum of its proper divisors (24852717).

55605843 is a wasteful number, since it uses less digits than its factorization.

55605843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698 (or 10695 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 55605843 is about 7456.9325462954. The cubic root of 55605843 is about 381.6865089722.

The spelling of 55605843 in words is "fifty-five million, six hundred five thousand, eight hundred forty-three".