66000250 has 32 divisors (see below), whose sum is σ = 124203456. Its totient is φ = 26261200.

The previous prime is 66000247. The next prime is 66000257. The reversal of 66000250 is 5200066.

It is not an unprimeable number, because it can be changed into a prime (66000257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56169 + ... + 57331.

It is an arithmetic number, because the mean of its divisors is an integer number (3881358).

Almost surely, 2^66000250 is an apocalyptic number.

66000250 is a deficient number, since it is larger than the sum of its proper divisors (58203206).

66000250 is a wasteful number, since it uses less digits than its factorization.

66000250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 66000250 is about 8124.0537910578. The cubic root of 66000250 is about 404.1245123192.

The spelling of 66000250 in words is "sixty-six million, two hundred fifty", and thus it is an aban number.