55877218 has 16 divisors (see below), whose sum is σ = 84654720. Its totient is φ = 27660816.

The previous prime is 55877207. The next prime is 55877251. The reversal of 55877218 is 81277855.

55877218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 152071 + ... + 152437.

It is an arithmetic number, because the mean of its divisors is an integer number (5290920).

Almost surely, 2^55877218 is an apocalyptic number.

55877218 is a deficient number, since it is larger than the sum of its proper divisors (28777502).

55877218 is a wasteful number, since it uses less digits than its factorization.

55877218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its digits is 156800, while the sum is 43.

The square root of 55877218 is about 7475.1065544245. The cubic root of 55877218 is about 382.3064206234.

The spelling of 55877218 in words is "fifty-five million, eight hundred seventy-seven thousand, two hundred eighteen".