54121440000 has 360 divisors, whose sum is σ = 183901132800. Its totient is φ = 14119424000.

The previous prime is 54121439971. The next prime is 54121440007. The reversal of 54121440000 is 4412145.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54121440007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22558801 + ... + 22561199.

It is an arithmetic number, because the mean of its divisors is an integer number (510836480).

Almost surely, 2^54121440000 is an apocalyptic number.

54121440000 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 54121440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91950566400).

54121440000 is an abundant number, since it is smaller than the sum of its proper divisors (129779692800).

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

54121440000 is an equidigital number, since it uses as much as digits as its factorization.

54121440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 54121440000 its reverse (4412145), we get a palindrome (54125852145).

The spelling of 54121440000 in words is "fifty-four billion, one hundred twenty-one million, four hundred forty thousand".