50381779 has 4 divisors (see below), whose sum is σ = 57579184. Its totient is φ = 43184376.

The previous prime is 50381759. The next prime is 50381783. The reversal of 50381779 is 97718305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97718305 = 5 ⋅19543661.

It is a cyclic number.

It is not a de Polignac number, because 50381779 - 2⁹ = 50381267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50381719) 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, 3598692 + ... + 3598705.

It is an arithmetic number, because the mean of its divisors is an integer number (14394796).

Almost surely, 2^50381779 is an apocalyptic number.

50381779 is a deficient number, since it is larger than the sum of its proper divisors (7197405).

50381779 is an equidigital number, since it uses as much as digits as its factorization.

50381779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197404.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 50381779 is about 7098.0123274055. The cubic root of 50381779 is about 369.3384306584.

The spelling of 50381779 in words is "fifty million, three hundred eighty-one thousand, seven hundred seventy-nine".