50514543440 has 80 divisors (see below), whose sum is σ = 120138024960. Its totient is φ = 19744112640.

The previous prime is 50514543367. The next prime is 50514543467. The reversal of 50514543440 is 4434541505.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 50514543440.

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, 2399681 + ... + 2420639.

It is an arithmetic number, because the mean of its divisors is an integer number (1501725312).

Almost surely, 2^50514543440 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 50514543440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60069012480).

50514543440 is an abundant number, since it is smaller than the sum of its proper divisors (69623481520).

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

50514543440 is a wasteful number, since it uses less digits than its factorization.

50514543440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660 (or 21654 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 50514543440 in words is "fifty billion, five hundred fourteen million, five hundred forty-three thousand, four hundred forty".