54440540 has 192 divisors, whose sum is σ = 156764160. Its totient is φ = 15375360.

The previous prime is 54440513. The next prime is 54440543. The reversal of 54440540 is 4504445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54440543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1027154 + ... + 1027206.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^54440540 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 54440540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78382080).

54440540 is an abundant number, since it is smaller than the sum of its proper divisors (102323620).

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

54440540 is a wasteful number, since it uses less digits than its factorization.

54440540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 54440540 is about 7378.3832917517. The cubic root of 54440540 is about 379.0013946756.

Adding to 54440540 its reverse (4504445), we get a palindrome (58944985).

It can be divided in two parts, 544405 and 40, that added together give a palindrome (544445).

The spelling of 54440540 in words is "fifty-four million, four hundred forty thousand, five hundred forty".