50111131 has 4 divisors (see below), whose sum is σ = 57269872. Its totient is φ = 42952392.

The previous prime is 50111123. The next prime is 50111137. The reversal of 50111131 is 13111105.

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

It is not a de Polignac number, because 50111131 - 2³ = 50111123 is a prime.

It is a super-2 number, since 2×50111131² = 5022250900198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50111137) 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, 3579360 + ... + 3579373.

It is an arithmetic number, because the mean of its divisors is an integer number (14317468).

Almost surely, 2^50111131 is an apocalyptic number.

50111131 is a deficient number, since it is larger than the sum of its proper divisors (7158741).

50111131 is an equidigital number, since it uses as much as digits as its factorization.

50111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158740.

The product of its (nonzero) digits is 15, while the sum is 13.

The square root of 50111131 is about 7078.9215986618. The cubic root of 50111131 is about 368.6758879690.

Adding to 50111131 its reverse (13111105), we get a palindrome (63222236).

The spelling of 50111131 in words is "fifty million, one hundred eleven thousand, one hundred thirty-one".