54517778 has 16 divisors (see below), whose sum is σ = 96474624. Its totient is φ = 22610880.

The previous prime is 54517777. The next prime is 54517807. The reversal of 54517778 is 87771545.

54517778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54517777) 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, 62375 + ... + 63242.

It is an arithmetic number, because the mean of its divisors is an integer number (6029664).

Almost surely, 2^54517778 is an apocalyptic number.

54517778 is a deficient number, since it is larger than the sum of its proper divisors (41956846).

54517778 is a wasteful number, since it uses less digits than its factorization.

54517778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125657.

The product of its digits is 274400, while the sum is 44.

The square root of 54517778 is about 7383.6155100330. The cubic root of 54517778 is about 379.1805471767.

The spelling of 54517778 in words is "fifty-four million, five hundred seventeen thousand, seven hundred seventy-eight".