50539050640 has 80 divisors (see below), whose sum is σ = 127795164336. Its totient is φ = 18475776000.

The previous prime is 50539050623. The next prime is 50539050641. The reversal of 50539050640 is 4605093505.

It can be written as a sum of positive squares in 8 ways, for example, as 4908964096 + 45630086544 = 70064^2 + 213612^2 .

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 50539050640.

It is not an unprimeable number, because it can be changed into a prime (50539050641) 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, 135531 + ... + 345610.

Almost surely, 2^50539050640 is an apocalyptic number.

It is an amenable number.

50539050640 is an abundant number, since it is smaller than the sum of its proper divisors (77256113696).

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

50539050640 is a wasteful number, since it uses less digits than its factorization.

50539050640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481268 (or 481262 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 50539050640 in words is "fifty billion, five hundred thirty-nine million, fifty thousand, six hundred forty".