50131049851 has 4 divisors (see below), whose sum is σ = 50467500000. Its totient is φ = 49794599704.

The previous prime is 50131049827. The next prime is 50131049863. The reversal of 50131049851 is 15894013105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50131049851 - 2⁵ = 50131049819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50131049851.

It is not an unprimeable number, because it can be changed into a prime (50131046851) 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, 168224851 + ... + 168225148.

It is an arithmetic number, because the mean of its divisors is an integer number (12616875000).

Almost surely, 2^50131049851 is an apocalyptic number.

50131049851 is a deficient number, since it is larger than the sum of its proper divisors (336450149).

50131049851 is a wasteful number, since it uses less digits than its factorization.

50131049851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336450148.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 50131049851 in words is "fifty billion, one hundred thirty-one million, forty-nine thousand, eight hundred fifty-one".