50553643831 has 4 divisors (see below), whose sum is σ = 50586408592. Its totient is φ = 50520879072.

The previous prime is 50553643783. The next prime is 50553643853. The reversal of 50553643831 is 13834635505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13834635505 = 5 ⋅2766927101.

It is a cyclic number.

It is not a de Polignac number, because 50553643831 - 2⁷ = 50553643703 is a prime.

It is a super-2 number, since 2×50553643831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50553649831) 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, 16380066 + ... + 16383151.

It is an arithmetic number, because the mean of its divisors is an integer number (12646602148).

Almost surely, 2^50553643831 is an apocalyptic number.

50553643831 is a deficient number, since it is larger than the sum of its proper divisors (32764761).

50553643831 is a wasteful number, since it uses less digits than its factorization.

50553643831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32764760.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 50553643831 in words is "fifty billion, five hundred fifty-three million, six hundred forty-three thousand, eight hundred thirty-one".