54978118 has 16 divisors (see below), whose sum is σ = 89058816. Its totient is φ = 25303680.

The previous prime is 54978101. The next prime is 54978139. The reversal of 54978118 is 81187945.

It is a happy number.

54978118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 7198 + ... + 12718.

It is an arithmetic number, because the mean of its divisors is an integer number (5566176).

Almost surely, 2^54978118 is an apocalyptic number.

54978118 is a deficient number, since it is larger than the sum of its proper divisors (34080698).

54978118 is a wasteful number, since it uses less digits than its factorization.

54978118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919.

The product of its digits is 80640, while the sum is 43.

The square root of 54978118 is about 7414.7230561903. The cubic root of 54978118 is about 380.2448053221.

The spelling of 54978118 in words is "fifty-four million, nine hundred seventy-eight thousand, one hundred eighteen".