54778128 has 40 divisors (see below), whose sum is σ = 143630688. Its totient is φ = 17985792.

The previous prime is 54778127. The next prime is 54778151. The reversal of 54778128 is 82187745.

It is a self number, because there is not a number n which added to its sum of digits gives 54778128.

It is not an unprimeable number, because it can be changed into a prime (54778123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 11732.

Almost surely, 2^54778128 is an apocalyptic number.

It is an amenable number.

54778128 is an abundant number, since it is smaller than the sum of its proper divisors (88852560).

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

54778128 is a wasteful number, since it uses less digits than its factorization.

54778128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17111 (or 17105 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 54778128 is about 7401.2247635104. The cubic root of 54778128 is about 379.7831819453.

The spelling of 54778128 in words is "fifty-four million, seven hundred seventy-eight thousand, one hundred twenty-eight".