54308720 has 20 divisors (see below), whose sum is σ = 126267960. Its totient is φ = 21723456.

The previous prime is 54308689. The next prime is 54308731. The reversal of 54308720 is 2780345.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339350 + ... + 339509.

It is an arithmetic number, because the mean of its divisors is an integer number (6313398).

Almost surely, 2^54308720 is an apocalyptic number.

It is an amenable number.

54308720 is an abundant number, since it is smaller than the sum of its proper divisors (71959240).

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

54308720 is a wasteful number, since it uses less digits than its factorization.

54308720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678872 (or 678866 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 54308720 is about 7369.4450265946. The cubic root of 54308720 is about 378.6952481788.

The spelling of 54308720 in words is "fifty-four million, three hundred eight thousand, seven hundred twenty".