250566 has 8 divisors (see below), whose sum is σ = 501144. Its totient is φ = 83520.

The previous prime is 250543. The next prime is 250583. The reversal of 250566 is 665052.

It is a sphenic number, since it is the product of 3 distinct primes.

250566 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250566.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20875 + ... + 20886.

It is an arithmetic number, because the mean of its divisors is an integer number (62643).

2²⁵⁰⁵⁶⁶ is an apocalyptic number.

250566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250566 is a wasteful number, since it uses less digits than its factorization.

250566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41766.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 250566 is about 500.5656800061. The cubic root of 250566 is about 63.0435576831.

The spelling of 250566 in words is "two hundred fifty thousand, five hundred sixty-six".