54220540 has 48 divisors (see below), whose sum is σ = 127590624. Its totient is φ = 19180800.

The previous prime is 54220513. The next prime is 54220553. The reversal of 54220540 is 4502245.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4810 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (2658138).

Almost surely, 2^54220540 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 54220540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63795312).

54220540 is an abundant number, since it is smaller than the sum of its proper divisors (73370084).

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

54220540 is a wasteful number, since it uses less digits than its factorization.

54220540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718 (or 6716 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 54220540 is about 7363.4597846393. The cubic root of 54220540 is about 378.4901771412.

Adding to 54220540 its reverse (4502245), we get a palindrome (58722785).

It can be divided in two parts, 542205 and 40, that added together give a palindrome (542245).

The spelling of 54220540 in words is "fifty-four million, two hundred twenty thousand, five hundred forty".