54178866 has 24 divisors (see below), whose sum is σ = 134157504. Its totient is φ = 15479640.

The previous prime is 54178853. The next prime is 54178903. The reversal of 54178866 is 66887145.

It is a happy number.

54178866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 214870 + ... + 215121.

It is an arithmetic number, because the mean of its divisors is an integer number (5589896).

Almost surely, 2^54178866 is an apocalyptic number.

54178866 is an abundant number, since it is smaller than the sum of its proper divisors (79978638).

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

54178866 is a wasteful number, since it uses less digits than its factorization.

54178866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430006 (or 430003 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 54178866 is about 7360.6294567788. The cubic root of 54178866 is about 378.3931828873.

The spelling of 54178866 in words is "fifty-four million, one hundred seventy-eight thousand, eight hundred sixty-six".