50801005111 has 4 divisors (see below), whose sum is σ = 50809504824. Its totient is φ = 50792505400.

The previous prime is 50801005091. The next prime is 50801005139. The reversal of 50801005111 is 11150010805.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50801005111 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 (50801005141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4240885 + ... + 4252846.

It is an arithmetic number, because the mean of its divisors is an integer number (12702376206).

Almost surely, 2^50801005111 is an apocalyptic number.

50801005111 is a deficient number, since it is larger than the sum of its proper divisors (8499713).

50801005111 is an equidigital number, since it uses as much as digits as its factorization.

50801005111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8499712.

The product of its (nonzero) digits is 200, while the sum is 22.

Adding to 50801005111 its reverse (11150010805), we get a palindrome (61951015916).

The spelling of 50801005111 in words is "fifty billion, eight hundred one million, five thousand, one hundred eleven".