50138530208 has 192 divisors, whose sum is σ = 113514670080. Its totient is φ = 21624717312.

The previous prime is 50138530199. The next prime is 50138530243. The reversal of 50138530208 is 80203583105.

It is a super-2 number, since 2×50138530208² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 82600241 + ... + 82600847.

It is an arithmetic number, because the mean of its divisors is an integer number (591222240).

Almost surely, 2^50138530208 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 50138530208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56757335040).

50138530208 is an abundant number, since it is smaller than the sum of its proper divisors (63376139872).

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

50138530208 is a wasteful number, since it uses less digits than its factorization.

50138530208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 50138530208 in words is "fifty billion, one hundred thirty-eight million, five hundred thirty thousand, two hundred eight".