50391019305 has 36 divisors (see below), whose sum is σ = 96006701700. Its totient is φ = 24432006720.

The previous prime is 50391019229. The next prime is 50391019361.

50391019305 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 28961572761 + 21429446544 = 170181^2 + 146388^2 .

It is not a de Polignac number, because 50391019305 - 2⁷ = 50391019177 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50391019305.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4621830 + ... + 4632719.

It is an arithmetic number, because the mean of its divisors is an integer number (2666852825).

Almost surely, 2^50391019305 is an apocalyptic number.

50391019305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50391019305 is a deficient number, since it is larger than the sum of its proper divisors (45615682395).

50391019305 is a wasteful number, since it uses less digits than its factorization.

50391019305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254582 (or 9254568 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 36.

The spelling of 50391019305 in words is "fifty billion, three hundred ninety-one million, nineteen thousand, three hundred five".