50791133021 has 4 divisors (see below), whose sum is σ = 50791592544. Its totient is φ = 50790673500.

The previous prime is 50791133011. The next prime is 50791133023. The reversal of 50791133021 is 12033119705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 50791133021 - 2¹⁰ = 50791131997 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 (50791133023) 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, 47816 + ... + 322286.

It is an arithmetic number, because the mean of its divisors is an integer number (12697898136).

Almost surely, 2^50791133021 is an apocalyptic number.

It is an amenable number.

50791133021 is a deficient number, since it is larger than the sum of its proper divisors (459523).

50791133021 is a wasteful number, since it uses less digits than its factorization.

50791133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459522.

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 50791133021 in words is "fifty billion, seven hundred ninety-one million, one hundred thirty-three thousand, twenty-one".