54381500 has 48 divisors (see below), whose sum is σ = 120783936. Its totient is φ = 21384000.

The previous prime is 54381497. The next prime is 54381511. The reversal of 54381500 is 518345.

It is a self number, because there is not a number n which added to its sum of digits gives 54381500.

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, 29609 + ... + 31391.

It is an arithmetic number, because the mean of its divisors is an integer number (2516332).

Almost surely, 2^54381500 is an apocalyptic number.

54381500 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 54381500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60391968).

54381500 is an abundant number, since it is smaller than the sum of its proper divisors (66402436).

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

54381500 is a wasteful number, since it uses less digits than its factorization.

54381500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 54381500 is about 7374.3813299829. The cubic root of 54381500 is about 378.8643378908.

Adding to 54381500 its reverse (518345), we get a palindrome (54899845).

The spelling of 54381500 in words is "fifty-four million, three hundred eighty-one thousand, five hundred".