250566066 has 12 divisors (see below), whose sum is σ = 542893182. Its totient is φ = 83522016.

The previous prime is 250566059. The next prime is 250566067. The reversal of 250566066 is 660665052.

It can be written as a sum of positive squares in only one way, i.e., 177822225 + 72743841 = 13335^2 + 8529^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 250566066.

It is not an unprimeable number, because it can be changed into a prime (250566067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6960151 + ... + 6960186.

Almost surely, 2^250566066 is an apocalyptic number.

250566066 is an abundant number, since it is smaller than the sum of its proper divisors (292327116).

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

250566066 is a wasteful number, since it uses less digits than its factorization.

250566066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920345 (or 13920342 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 250566066 is about 15829.2787580483. The cubic root of 250566066 is about 630.4356321843.

The spelling of 250566066 in words is "two hundred fifty million, five hundred sixty-six thousand, sixty-six".