50517787320 has 1024 divisors, whose sum is σ = 229224038400. Its totient is φ = 9555978240.

The previous prime is 50517787279. The next prime is 50517787339. The reversal of 50517787320 is 2378771505.

50517787320 is a `hidden beast` number, since 50 + 517 + 7 + 87 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 89729359 + ... + 89729921.

It is an arithmetic number, because the mean of its divisors is an integer number (223851600).

Almost surely, 2^50517787320 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 50517787320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114612019200).

50517787320 is an abundant number, since it is smaller than the sum of its proper divisors (178706251080).

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

50517787320 is a wasteful number, since it uses less digits than its factorization.

50517787320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 50517787320 in words is "fifty billion, five hundred seventeen million, seven hundred eighty-seven thousand, three hundred twenty".