50243454013 has 4 divisors (see below), whose sum is σ = 51975986940. Its totient is φ = 48510921088.

The previous prime is 50243453969. The next prime is 50243454089. The reversal of 50243454013 is 31045434205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31045434205 = 5 ⋅6209086841.

It can be written as a sum of positive squares in 2 ways, for example, as 19000416964 + 31243037049 = 137842^2 + 176757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50243454013 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 (50243454113) 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, 866266420 + ... + 866266477.

It is an arithmetic number, because the mean of its divisors is an integer number (12993996735).

Almost surely, 2^50243454013 is an apocalyptic number.

It is an amenable number.

50243454013 is a deficient number, since it is larger than the sum of its proper divisors (1732532927).

50243454013 is a wasteful number, since it uses less digits than its factorization.

50243454013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732532926.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 50243454013 its reverse (31045434205), we get a palindrome (81288888218).

The spelling of 50243454013 in words is "fifty billion, two hundred forty-three million, four hundred fifty-four thousand, thirteen".