54120720 has 40 divisors (see below), whose sum is σ = 167774976. Its totient is φ = 14432128.

The previous prime is 54120719. The next prime is 54120743. The reversal of 54120720 is 2702145.

It is a tau number, because it is divible by the number of its divisors (40).

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, 112512 + ... + 112991.

Almost surely, 2^54120720 is an apocalyptic number.

It is an amenable number.

54120720 is an abundant number, since it is smaller than the sum of its proper divisors (113654256).

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

54120720 is a wasteful number, since it uses less digits than its factorization.

54120720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225519 (or 225513 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 54120720 is about 7356.6785983894. The cubic root of 54120720 is about 378.2577676884.

Adding to 54120720 its reverse (2702145), we get a palindrome (56822865).

The spelling of 54120720 in words is "fifty-four million, one hundred twenty thousand, seven hundred twenty".