54128816 has 40 divisors (see below), whose sum is σ = 126911520. Its totient is φ = 21832704.

The previous prime is 54128803. The next prime is 54128849. The reversal of 54128816 is 61882145.

54128816 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 7 ways as a sum of consecutive naturals, for example, 12311 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (3172788).

Almost surely, 2^54128816 is an apocalyptic number.

54128816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

54128816 is an abundant number, since it is smaller than the sum of its proper divisors (72782704).

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

54128816 is a wasteful number, since it uses less digits than its factorization.

54128816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28461 (or 28455 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 54128816 is about 7357.2288261274. The cubic root of 54128816 is about 378.2766281310.

The spelling of 54128816 in words is "fifty-four million, one hundred twenty-eight thousand, eight hundred sixteen".