50981939 has 8 divisors (see below), whose sum is σ = 52167360. Its totient is φ = 49810176.

The previous prime is 50981899. The next prime is 50981941. The reversal of 50981939 is 93918905.

50981939 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 a cyclic number.

It is not a de Polignac number, because 50981939 - 2⁸ = 50981683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50981939.

It is not an unprimeable number, because it can be changed into a prime (50984939) 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, 4337 + ... + 10989.

It is an arithmetic number, because the mean of its divisors is an integer number (6520920).

Almost surely, 2^50981939 is an apocalyptic number.

50981939 is a deficient number, since it is larger than the sum of its proper divisors (1185421).

50981939 is an equidigital number, since it uses as much as digits as its factorization.

50981939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 50981939 is about 7140.1637936395. The cubic root of 50981939 is about 370.7991953200.

The spelling of 50981939 in words is "fifty million, nine hundred eighty-one thousand, nine hundred thirty-nine".