50549738408 has 64 divisors (see below), whose sum is σ = 108122227920. Its totient is φ = 21948825600.

The previous prime is 50549738339. The next prime is 50549738417. The reversal of 50549738408 is 80483794505.

It can be written as a sum of positive squares in 8 ways, for example, as 3669694084 + 46880044324 = 60578^2 + 216518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50549738408.

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, 5513348 + ... + 5522508.

Almost surely, 2^50549738408 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 50549738408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54061113960).

50549738408 is an abundant number, since it is smaller than the sum of its proper divisors (57572489512).

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

50549738408 is a wasteful number, since it uses less digits than its factorization.

50549738408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318 (or 12314 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 50549738408 in words is "fifty billion, five hundred forty-nine million, seven hundred thirty-eight thousand, four hundred eight".