54428856 has 64 divisors (see below), whose sum is σ = 143147520. Its totient is φ = 17212800.

The previous prime is 54428837. The next prime is 54428861. The reversal of 54428856 is 65882445.

54428856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 83026 + ... + 83678.

It is an arithmetic number, because the mean of its divisors is an integer number (2236680).

Almost surely, 2^54428856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54428856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71573760).

54428856 is an abundant number, since it is smaller than the sum of its proper divisors (88718664).

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

54428856 is a wasteful number, since it uses less digits than its factorization.

54428856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 832 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 54428856 is about 7377.5914768981. The cubic root of 54428856 is about 378.9742790425.

The spelling of 54428856 in words is "fifty-four million, four hundred twenty-eight thousand, eight hundred fifty-six".