50819 has 4 divisors (see below), whose sum is σ = 51480. Its totient is φ = 50160.

The previous prime is 50789. The next prime is 50821. The reversal of 50819 is 91805.

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

It is a cyclic number.

It is not a de Polignac number, because 50819 - 2¹² = 46723 is a prime.

It is a super-2 number, since 2×50819² = 5165141522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50794 and 50803.

It is not an unprimeable number, because it can be changed into a prime (50839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (12870).

2⁵⁰⁸¹⁹ is an apocalyptic number.

50819 is a deficient number, since it is larger than the sum of its proper divisors (661).

50819 is an equidigital number, since it uses as much as digits as its factorization.

50819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 50819 is about 225.4306988855. The cubic root of 50819 is about 37.0403747239.

The spelling of 50819 in words is "fifty thousand, eight hundred nineteen".