50611221113 has 4 divisors (see below), whose sum is σ = 51469038480. Its totient is φ = 49753403748.

The previous prime is 50611221083. The next prime is 50611221121. The reversal of 50611221113 is 31112211605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31112211605 = 5 ⋅6222442321.

It is a cyclic number.

It is not a de Polignac number, because 50611221113 - 2⁶ = 50611221049 is a prime.

It is a super-2 number, since 2×50611221113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50611221613) 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, 428908595 + ... + 428908712.

It is an arithmetic number, because the mean of its divisors is an integer number (12867259620).

Almost surely, 2^50611221113 is an apocalyptic number.

It is an amenable number.

50611221113 is a deficient number, since it is larger than the sum of its proper divisors (857817367).

50611221113 is an equidigital number, since it uses as much as digits as its factorization.

50611221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857817366.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 50611221113 its reverse (31112211605), we get a palindrome (81723432718).

The spelling of 50611221113 in words is "fifty billion, six hundred eleven million, two hundred twenty-one thousand, one hundred thirteen".