5050243991 has 4 divisors (see below), whose sum is σ = 5438724312. Its totient is φ = 4661763672.

The previous prime is 5050243951. The next prime is 5050244029. The reversal of 5050243991 is 1993420505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1993420505 = 5 ⋅398684101.

It is a cyclic number.

It is not a de Polignac number, because 5050243991 - 2⁶ = 5050243927 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 (5050243901) 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, 194240141 + ... + 194240166.

It is an arithmetic number, because the mean of its divisors is an integer number (1359681078).

Almost surely, 2^5050243991 is an apocalyptic number.

5050243991 is a deficient number, since it is larger than the sum of its proper divisors (388480321).

5050243991 is a wasteful number, since it uses less digits than its factorization.

5050243991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388480320.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5050243991 is about 71065.0687117096. The cubic root of 5050243991 is about 1715.6846018606.

The spelling of 5050243991 in words is "five billion, fifty million, two hundred forty-three thousand, nine hundred ninety-one".