54720288 has 72 divisors (see below), whose sum is σ = 177847488. Its totient is φ = 15633792.

The previous prime is 54720287. The next prime is 54720293. The reversal of 54720288 is 88202745.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (54720287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11556 + ... + 15587.

It is an arithmetic number, because the mean of its divisors is an integer number (2470104).

Almost surely, 2^54720288 is an apocalyptic number.

It is an amenable number.

54720288 is an abundant number, since it is smaller than the sum of its proper divisors (123127200).

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

54720288 is a wasteful number, since it uses less digits than its factorization.

54720288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27166 (or 27155 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 54720288 is about 7397.3162701077. The cubic root of 54720288 is about 379.6494643705.

The spelling of 54720288 in words is "fifty-four million, seven hundred twenty thousand, two hundred eighty-eight".