54228920 has 64 divisors (see below), whose sum is σ = 127491840. Its totient is φ = 20736000.

The previous prime is 54228913. The next prime is 54228931. The reversal of 54228920 is 2982245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125024 + ... + 125456.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^54228920 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 54228920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63745920).

54228920 is an abundant number, since it is smaller than the sum of its proper divisors (73262920).

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

54228920 is a wasteful number, since it uses less digits than its factorization.

54228920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 54228920 is about 7364.0287886455. The cubic root of 54228920 is about 378.5096751906.

The spelling of 54228920 in words is "fifty-four million, two hundred twenty-eight thousand, nine hundred twenty".