50005005491 has 4 divisors (see below), whose sum is σ = 57148577712. Its totient is φ = 42861433272.

The previous prime is 50005005461. The next prime is 50005005503. The reversal of 50005005491 is 19450050005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19450050005 = 5 ⋅3890010001.

It is a de Polignac number, because none of the positive numbers 2^k-50005005491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50005005431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571786100 + ... + 3571786113.

It is an arithmetic number, because the mean of its divisors is an integer number (14287144428).

Almost surely, 2^50005005491 is an apocalyptic number.

50005005491 is a deficient number, since it is larger than the sum of its proper divisors (7143572221).

50005005491 is an equidigital number, since it uses as much as digits as its factorization.

50005005491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143572220.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 50005005491 its reverse (19450050005), we get a palindrome (69455055496).

The spelling of 50005005491 in words is "fifty billion, five million, five thousand, four hundred ninety-one".