55089218 has 8 divisors (see below), whose sum is σ = 82803600. Its totient is φ = 27488020.

The previous prime is 55089193. The next prime is 55089239. The reversal of 55089218 is 81298055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27068 + ... + 29031.

It is an arithmetic number, because the mean of its divisors is an integer number (10350450).

Almost surely, 2^55089218 is an apocalyptic number.

55089218 is a deficient number, since it is larger than the sum of its proper divisors (27714382).

55089218 is a wasteful number, since it uses less digits than its factorization.

55089218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56592.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 55089218 is about 7422.2111260729. The cubic root of 55089218 is about 380.5007663898.

The spelling of 55089218 in words is "fifty-five million, eighty-nine thousand, two hundred eighteen".