50668556431 has 4 divisors (see below), whose sum is σ = 50678080552. Its totient is φ = 50659032312.

The previous prime is 50668556387. The next prime is 50668556441. The reversal of 50668556431 is 13465586605.

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 50668556431 - 2¹⁵ = 50668523663 is a prime.

It is a super-2 number, since 2×50668556431² (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 (50668556441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4754076 + ... + 4764721.

It is an arithmetic number, because the mean of its divisors is an integer number (12669520138).

Almost surely, 2^50668556431 is an apocalyptic number.

50668556431 is a deficient number, since it is larger than the sum of its proper divisors (9524121).

50668556431 is an equidigital number, since it uses as much as digits as its factorization.

50668556431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9524120.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 50668556431 in words is "fifty billion, six hundred sixty-eight million, five hundred fifty-six thousand, four hundred thirty-one".