50011311 has 24 divisors (see below), whose sum is σ = 77836464. Its totient is φ = 28479360.

The previous prime is 50011289. The next prime is 50011321. The reversal of 50011311 is 11311005.

It is not a de Polignac number, because 50011311 - 2⁷ = 50011183 is a prime.

It is a super-2 number, since 2×50011311² = 5002262455877442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50011321) 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 23 ways as a sum of consecutive naturals, for example, 76261 + ... + 76913.

It is an arithmetic number, because the mean of its divisors is an integer number (3243186).

Almost surely, 2^50011311 is an apocalyptic number.

50011311 is a deficient number, since it is larger than the sum of its proper divisors (27825153).

50011311 is a wasteful number, since it uses less digits than its factorization.

50011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 50011311 is about 7071.8675751176. The cubic root of 50011311 is about 368.4309278230.

Adding to 50011311 its reverse (11311005), we get a palindrome (61322316).

It can be divided in two parts, 500 and 11311, that added together give a palindrome (11811).

The spelling of 50011311 in words is "fifty million, eleven thousand, three hundred eleven".