50320531 has 4 divisors (see below), whose sum is σ = 52969000. Its totient is φ = 47672064.

The previous prime is 50320499. The next prime is 50320549. The reversal of 50320531 is 13502305.

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

It is not a de Polignac number, because 50320531 - 2⁵ = 50320499 is a prime.

It is a super-2 number, since 2×50320531² = 5064311680243922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 2648449 = 50320531 / (5 + 0 + 3 + 2 + 0 + 5 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50320499 and 50320508.

It is not an unprimeable number, because it can be changed into a prime (50320591) 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 3 ways as a sum of consecutive naturals, for example, 1324206 + ... + 1324243.

It is an arithmetic number, because the mean of its divisors is an integer number (13242250).

Almost surely, 2^50320531 is an apocalyptic number.

50320531 is a deficient number, since it is larger than the sum of its proper divisors (2648469).

50320531 is a wasteful number, since it uses less digits than its factorization.

50320531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648468.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 50320531 is about 7093.6965680807. The cubic root of 50320531 is about 369.1887044839.

Adding to 50320531 its reverse (13502305), we get a palindrome (63822836).

The spelling of 50320531 in words is "fifty million, three hundred twenty thousand, five hundred thirty-one".