50521211111 has 8 divisors (see below), whose sum is σ = 58310196384. Its totient is φ = 42875143200.

The previous prime is 50521211093. The next prime is 50521211123. The reversal of 50521211111 is 11111212505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50521211111 - 2¹⁸ = 50520948967 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 (50521211171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35728580 + ... + 35729993.

It is an arithmetic number, because the mean of its divisors is an integer number (7288774548).

Almost surely, 2^50521211111 is an apocalyptic number.

50521211111 is a deficient number, since it is larger than the sum of its proper divisors (7788985273).

50521211111 is a wasteful number, since it uses less digits than its factorization.

50521211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71458681.

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 50521211111 its reverse (11111212505), we get a palindrome (61632423616).

The spelling of 50521211111 in words is "fifty billion, five hundred twenty-one million, two hundred eleven thousand, one hundred eleven".