54155784 has 32 divisors (see below), whose sum is σ = 135616320. Its totient is φ = 18021696.

The previous prime is 54155767. The next prime is 54155819. The reversal of 54155784 is 48755145.

It is an unprimeable number.

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, 16314 + ... + 19350.

It is an arithmetic number, because the mean of its divisors is an integer number (4238010).

Almost surely, 2^54155784 is an apocalyptic number.

It is an amenable number.

54155784 is an abundant number, since it is smaller than the sum of its proper divisors (81460536).

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

54155784 is a wasteful number, since it uses less digits than its factorization.

54155784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789 (or 3785 counting only the distinct ones).

The product of its digits is 112000, while the sum is 39.

The square root of 54155784 is about 7359.0613531890. The cubic root of 54155784 is about 378.3394392247.

The spelling of 54155784 in words is "fifty-four million, one hundred fifty-five thousand, seven hundred eighty-four".