54501220 has 24 divisors (see below), whose sum is σ = 115227000. Its totient is φ = 21652992.

The previous prime is 54501173. The next prime is 54501229. The reversal of 54501220 is 2210545.

It can be written as a sum of positive squares in 4 ways, for example, as 9771876 + 44729344 = 3126^2 + 6688^2 .

It is not an unprimeable number, because it can be changed into a prime (54501229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6165 + ... + 12124.

It is an arithmetic number, because the mean of its divisors is an integer number (4801125).

Almost surely, 2^54501220 is an apocalyptic number.

It is an amenable number.

54501220 is an abundant number, since it is smaller than the sum of its proper divisors (60725780).

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

54501220 is a wasteful number, since it uses less digits than its factorization.

54501220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18447 (or 18445 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 54501220 is about 7382.4941584806. The cubic root of 54501220 is about 379.1421553745.

Adding to 54501220 its reverse (2210545), we get a palindrome (56711765).

It can be divided in two parts, 5450 and 1220, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 54501220 in words is "fifty-four million, five hundred one thousand, two hundred twenty".