54445218 has 16 divisors (see below), whose sum is σ = 109175040. Its totient is φ = 18100976.

The previous prime is 54445217. The next prime is 54445229. The reversal of 54445218 is 81254445.

It is a happy number.

54445218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (54445211) 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 7 ways as a sum of consecutive naturals, for example, 9330 + ... + 13997.

It is an arithmetic number, because the mean of its divisors is an integer number (6823440).

Almost surely, 2^54445218 is an apocalyptic number.

54445218 is an abundant number, since it is smaller than the sum of its proper divisors (54729822).

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

54445218 is a wasteful number, since it uses less digits than its factorization.

54445218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23721.

The product of its digits is 25600, while the sum is 33.

The square root of 54445218 is about 7378.7002920569. The cubic root of 54445218 is about 379.0122500525.

The spelling of 54445218 in words is "fifty-four million, four hundred forty-five thousand, two hundred eighteen".