54118540 has 84 divisors (see below), whose sum is σ = 138355056. Its totient is φ = 17748192.

The previous prime is 54118523. The next prime is 54118541. The reversal of 54118540 is 4581145.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 54118499 and 54118508.

It is not an unprimeable number, because it can be changed into a prime (54118541) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2352969 + ... + 2352991.

It is an arithmetic number, because the mean of its divisors is an integer number (1647084).

Almost surely, 2^54118540 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 54118540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69177528).

54118540 is an abundant number, since it is smaller than the sum of its proper divisors (84236516).

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

54118540 is an frugal number, since it uses more digits than its factorization.

54118540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 54118540 is about 7356.5304322078. The cubic root of 54118540 is about 378.2526888387.

Adding to 54118540 its reverse (4581145), we get a palindrome (58699685).

The spelling of 54118540 in words is "fifty-four million, one hundred eighteen thousand, five hundred forty".