50398031520 has 480 divisors, whose sum is σ = 183871150848. Its totient is φ = 12990523392.

The previous prime is 50398031507. The next prime is 50398031599. The reversal of 50398031520 is 2513089305.

50398031520 is a `hidden beast` number, since 50 + 3 + 9 + 80 + 3 + 1 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 108850809 + ... + 108851271.

Almost surely, 2^50398031520 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 50398031520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91935575424).

50398031520 is an abundant number, since it is smaller than the sum of its proper divisors (133473119328).

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

50398031520 is a wasteful number, since it uses less digits than its factorization.

50398031520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 50398031520 in words is "fifty billion, three hundred ninety-eight million, thirty-one thousand, five hundred twenty".