50130831 has 4 divisors (see below), whose sum is σ = 66841112. Its totient is φ = 33420552.

The previous prime is 50130809. The next prime is 50130833. The reversal of 50130831 is 13803105.

It is a happy number.

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

It is not a de Polignac number, because 50130831 - 2⁵ = 50130799 is a prime.

It is a super-2 number, since 2×50130831² = 5026200433501122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50130798 and 50130807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50130833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8355136 + ... + 8355141.

It is an arithmetic number, because the mean of its divisors is an integer number (16710278).

Almost surely, 2^50130831 is an apocalyptic number.

50130831 is a deficient number, since it is larger than the sum of its proper divisors (16710281).

50130831 is a wasteful number, since it uses less digits than its factorization.

50130831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16710280.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 50130831 is about 7080.3129168138. The cubic root of 50130831 is about 368.7241936934.

Adding to 50130831 its reverse (13803105), we get a palindrome (63933936).

The spelling of 50130831 in words is "fifty million, one hundred thirty thousand, eight hundred thirty-one".