50540235648 has 128 divisors (see below), whose sum is σ = 153537189120. Its totient is φ = 14429577216.

The previous prime is 50540235643. The next prime is 50540235761. The reversal of 50540235648 is 84653204505.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50540235643) by changing a digit.

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, 4168411 + ... + 4180517.

It is an arithmetic number, because the mean of its divisors is an integer number (1199509290).

Almost surely, 2^50540235648 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 50540235648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76768594560).

50540235648 is an abundant number, since it is smaller than the sum of its proper divisors (102996953472).

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

50540235648 is a wasteful number, since it uses less digits than its factorization.

50540235648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13684 (or 13672 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 50540235648 in words is "fifty billion, five hundred forty million, two hundred thirty-five thousand, six hundred forty-eight".