50666 has 24 divisors (see below), whose sum is σ = 98496. Its totient is φ = 19320.

The previous prime is 50651. The next prime is 50671. The reversal of 50666 is 66605.

It is a happy number.

50666 is a modest number, since divided by 666 gives 50 as remainder.

It is a Curzon number.

It is an unprimeable number.

50666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (4104).

2⁵⁰⁶⁶⁶ is an apocalyptic number.

50666 is a deficient number, since it is larger than the sum of its proper divisors (47830).

50666 is a wasteful number, since it uses less digits than its factorization.

50666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50666 is about 225.0910926714. The cubic root of 50666 is about 37.0031650567.

The spelling of 50666 in words is "fifty thousand, six hundred sixty-six".