50643 has 12 divisors (see below), whose sum is σ = 77688. Its totient is φ = 31680.

The previous prime is 50627. The next prime is 50647. The reversal of 50643 is 34605.

It is a happy number.

It is not a de Polignac number, because 50643 - 2⁴ = 50627 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

50643 is a lucky number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (50647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13 + ... + 318.

It is an arithmetic number, because the mean of its divisors is an integer number (6474).

2⁵⁰⁶⁴³ is an apocalyptic number.

50643 is a deficient number, since it is larger than the sum of its proper divisors (27045).

50643 is a wasteful number, since it uses less digits than its factorization.

50643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 50643 is about 225.0399964451. The cubic root of 50643 is about 36.9975649725.

Subtracting from 50643 its sum of digits (18), we obtain a 4-th power (50625 = 15⁴).

The spelling of 50643 in words is "fifty thousand, six hundred forty-three".