50759915813 has 4 divisors (see below), whose sum is σ = 50760762828. Its totient is φ = 50759068800.

The previous prime is 50759915779. The next prime is 50759915821. The reversal of 50759915813 is 31851995705.

50759915813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31851995705 = 5 ⋅6370399141.

It can be written as a sum of positive squares in 2 ways, for example, as 18290398564 + 32469517249 = 135242^2 + 180193^2 .

It is a cyclic number.

It is not a de Polignac number, because 50759915813 - 2¹⁶ = 50759850277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50759915873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326156 + ... + 455957.

It is an arithmetic number, because the mean of its divisors is an integer number (12690190707).

Almost surely, 2^50759915813 is an apocalyptic number.

It is an amenable number.

50759915813 is a deficient number, since it is larger than the sum of its proper divisors (847015).

50759915813 is an equidigital number, since it uses as much as digits as its factorization.

50759915813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847014.

The product of its (nonzero) digits is 1701000, while the sum is 53.

The spelling of 50759915813 in words is "fifty billion, seven hundred fifty-nine million, nine hundred fifteen thousand, eight hundred thirteen".