55994666 has 32 divisors (see below), whose sum is σ = 103783680. Its totient is φ = 22064256.

The previous prime is 55994633. The next prime is 55994669. The reversal of 55994666 is 66649955.

55994666 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 (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55994669) 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 15 ways as a sum of consecutive naturals, for example, 64910 + ... + 65766.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^55994666 is an apocalyptic number.

55994666 is a deficient number, since it is larger than the sum of its proper divisors (47789014).

55994666 is a wasteful number, since it uses less digits than its factorization.

55994666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 1749600, while the sum is 50.

The square root of 55994666 is about 7482.9583721948. The cubic root of 55994666 is about 382.5740890558.

The spelling of 55994666 in words is "fifty-five million, nine hundred ninety-four thousand, six hundred sixty-six".