55010866 has 4 divisors (see below), whose sum is σ = 82516302. Its totient is φ = 27505432.

The previous prime is 55010863. The next prime is 55010881. The reversal of 55010866 is 66801055.

55010866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28847641 + 26163225 = 5371^2 + 5115^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (55010863) 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 as a sum of consecutive naturals, namely, 13752715 + ... + 13752718.

Almost surely, 2^55010866 is an apocalyptic number.

55010866 is a deficient number, since it is larger than the sum of its proper divisors (27505436).

55010866 is a wasteful number, since it uses less digits than its factorization.

55010866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27505435.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 55010866 is about 7416.9310364867. The cubic root of 55010866 is about 380.3202885976.

The spelling of 55010866 in words is "fifty-five million, ten thousand, eight hundred sixty-six".