54120556 has 12 divisors (see below), whose sum is σ = 108241168. Its totient is φ = 23194512.

The previous prime is 54120553. The next prime is 54120557. The reversal of 54120556 is 65502145.

54120556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

54120556 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1932877 = 54120556 / (5 + 4 + 1 + 2 + 0 + 5 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (54120551) 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 3 ways as a sum of consecutive naturals, for example, 966411 + ... + 966466.

Almost surely, 2^54120556 is an apocalyptic number.

It is an amenable number.

54120556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54120556 is a wasteful number, since it uses less digits than its factorization.

54120556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932888 (or 1932886 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 54120556 is about 7356.6674520465. The cubic root of 54120556 is about 378.2573856146.

The spelling of 54120556 in words is "fifty-four million, one hundred twenty thousand, five hundred fifty-six".