50509491 has 8 divisors (see below), whose sum is σ = 68351424. Its totient is φ = 33170280.

The previous prime is 50509463. The next prime is 50509493. The reversal of 50509491 is 19490505.

50509491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50509491 - 2⁶ = 50509427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50509493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125445 + ... + 125846.

It is an arithmetic number, because the mean of its divisors is an integer number (8543928).

Almost surely, 2^50509491 is an apocalyptic number.

50509491 is a deficient number, since it is larger than the sum of its proper divisors (17841933).

50509491 is a wasteful number, since it uses less digits than its factorization.

50509491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251361.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 50509491 is about 7107.0029548326. The cubic root of 50509491 is about 369.6502441135.

Adding to 50509491 its reverse (19490505), we get a palindrome (69999996).

It can be divided in two parts, 5050 and 9491, that added together give a palindrome (14541).

The spelling of 50509491 in words is "fifty million, five hundred nine thousand, four hundred ninety-one".