50831538 has 8 divisors (see below), whose sum is σ = 101663088. Its totient is φ = 16943844.

The previous prime is 50831533. The next prime is 50831567. The reversal of 50831538 is 83513805.

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

50831538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 50831499 and 50831508.

It is not an unprimeable number, because it can be changed into a prime (50831533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235956 + ... + 4235967.

It is an arithmetic number, because the mean of its divisors is an integer number (12707886).

Almost surely, 2^50831538 is an apocalyptic number.

50831538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50831538 is a wasteful number, since it uses less digits than its factorization.

50831538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8471928.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 50831538 is about 7129.6239732541. The cubic root of 50831538 is about 370.4342065836.

The spelling of 50831538 in words is "fifty million, eight hundred thirty-one thousand, five hundred thirty-eight".