50681 has 4 divisors (see below), whose sum is σ = 51600. Its totient is φ = 49764.

The previous prime is 50671. The next prime is 50683. The reversal of 50681 is 18605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50681 - 2¹⁴ = 34297 is a prime.

It is a super-2 number, since 2×50681² = 5137127522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 50681.

It is not an unprimeable number, because it can be changed into a prime (50683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371 + ... + 488.

It is an arithmetic number, because the mean of its divisors is an integer number (12900).

2⁵⁰⁶⁸¹ is an apocalyptic number.

It is an amenable number.

50681 is a deficient number, since it is larger than the sum of its proper divisors (919).

50681 is an equidigital number, since it uses as much as digits as its factorization.

50681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 50681 is about 225.1244100492. The cubic root of 50681 is about 37.0068163726.

The spelling of 50681 in words is "fifty thousand, six hundred eighty-one".