54051312440 has 64 divisors (see below), whose sum is σ = 125957203200. Its totient is φ = 20850414592.

The previous prime is 54051312431. The next prime is 54051312451. The reversal of 54051312440 is 4421315045.

54051312440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974084 + ... + 1028076.

It is an arithmetic number, because the mean of its divisors is an integer number (1968081300).

Almost surely, 2^54051312440 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 54051312440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62978601600).

54051312440 is an abundant number, since it is smaller than the sum of its proper divisors (71905890760).

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

54051312440 is a wasteful number, since it uses less digits than its factorization.

54051312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54896 (or 54892 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 54051312440 its reverse (4421315045), we get a palindrome (58472627485).

The spelling of 54051312440 in words is "fifty-four billion, fifty-one million, three hundred twelve thousand, four hundred forty".