54081720 has 192 divisors, whose sum is σ = 219248640. Its totient is φ = 11232000.

The previous prime is 54081719. The next prime is 54081749. The reversal of 54081720 is 2718045.

54081720 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 47 ways as a sum of consecutive naturals, for example, 26745 + ... + 28695.

It is an arithmetic number, because the mean of its divisors is an integer number (1141920).

Almost surely, 2^54081720 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 54081720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109624320).

54081720 is an abundant number, since it is smaller than the sum of its proper divisors (165166920).

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

54081720 is a wasteful number, since it uses less digits than its factorization.

54081720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 54081720 is about 7354.0274679933. The cubic root of 54081720 is about 378.1668869200.

Adding to 54081720 its reverse (2718045), we get a palindrome (56799765).

The spelling of 54081720 in words is "fifty-four million, eighty-one thousand, seven hundred twenty".