54118985 has 8 divisors (see below), whose sum is σ = 64990536. Its totient is φ = 43263360.

The previous prime is 54118979. The next prime is 54118993. The reversal of 54118985 is 58981145.

54118985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 258064 + 53860921 = 508^2 + 7339^2 .

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

It is not a de Polignac number, because 54118985 - 2¹² = 54114889 is a prime.

It is a Duffinian number.

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, 5597 + ... + 11813.

It is an arithmetic number, because the mean of its divisors is an integer number (8123817).

Almost surely, 2^54118985 is an apocalyptic number.

It is an amenable number.

54118985 is a deficient number, since it is larger than the sum of its proper divisors (10871551).

54118985 is a wasteful number, since it uses less digits than its factorization.

54118985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its digits is 57600, while the sum is 41.

The square root of 54118985 is about 7356.5606773818. The cubic root of 54118985 is about 378.2537255875.

The spelling of 54118985 in words is "fifty-four million, one hundred eighteen thousand, nine hundred eighty-five".