55066266 has 24 divisors (see below), whose sum is σ = 120429504. Its totient is φ = 18183240.

The previous prime is 55066259. The next prime is 55066279. The reversal of 55066266 is 66266055.

55066266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55066266.

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 in 11 ways as a sum of consecutive naturals, for example, 12370 + ... + 16221.

It is an arithmetic number, because the mean of its divisors is an integer number (5017896).

Almost surely, 2^55066266 is an apocalyptic number.

55066266 is an abundant number, since it is smaller than the sum of its proper divisors (65363238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55066266 is a wasteful number, since it uses less digits than its factorization.

55066266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28706 (or 28703 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 55066266 is about 7420.6647950167. The cubic root of 55066266 is about 380.4479159589.

The spelling of 55066266 in words is "fifty-five million, sixty-six thousand, two hundred sixty-six".