54015500 has 192 divisors, whose sum is σ = 155990016. Its totient is φ = 15840000.

The previous prime is 54015497. The next prime is 54015509. The reversal of 54015500 is 551045.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (54015509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 885470 + ... + 885530.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^54015500 is an apocalyptic number.

54015500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54015500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77995008).

54015500 is an abundant number, since it is smaller than the sum of its proper divisors (101974516).

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

54015500 is a wasteful number, since it uses less digits than its factorization.

54015500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 54015500 is about 7349.5237940971. The cubic root of 54015500 is about 378.0124759093.

Adding to 54015500 its reverse (551045), we get a palindrome (54566545).

It can be divided in two parts, 5401 and 5500, that added together give a palindrome (10901).

The spelling of 54015500 in words is "fifty-four million, fifteen thousand, five hundred".