50821942423 has 4 divisors (see below), whose sum is σ = 58082219920. Its totient is φ = 43561664928.

The previous prime is 50821942393. The next prime is 50821942427. The reversal of 50821942423 is 32424912805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32424912805 = 5 ⋅6484982561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50821942423 is a prime.

It is a super-2 number, since 2×50821942423² (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 (50821942427) 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, 3630138738 + ... + 3630138751.

It is an arithmetic number, because the mean of its divisors is an integer number (14520554980).

Almost surely, 2^50821942423 is an apocalyptic number.

50821942423 is a deficient number, since it is larger than the sum of its proper divisors (7260277497).

50821942423 is an equidigital number, since it uses as much as digits as its factorization.

50821942423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260277496.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 50821942423 in words is "fifty billion, eight hundred twenty-one million, nine hundred forty-two thousand, four hundred twenty-three".