50311385520 has 160 divisors (see below), whose sum is σ = 175632758784. Its totient is φ = 11803238400.

The previous prime is 50311385519. The next prime is 50311385533. The reversal of 50311385520 is 2558311305.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225537 + ... + 389216.

Almost surely, 2^50311385520 is an apocalyptic number.

It is an amenable number.

50311385520 is an abundant number, since it is smaller than the sum of its proper divisors (125321373264).

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

50311385520 is a wasteful number, since it uses less digits than its factorization.

50311385520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614811 (or 614805 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 50311385520 its reverse (2558311305), we get a palindrome (52869696825).

The spelling of 50311385520 in words is "fifty billion, three hundred eleven million, three hundred eighty-five thousand, five hundred twenty".