250220066 has 8 divisors (see below), whose sum is σ = 375643164. Its totient is φ = 125005680.

The previous prime is 250220027. The next prime is 250220077. The reversal of 250220066 is 660022052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 248976841 + 1243225 = 15779^2 + 1115^2 .

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

It is a super-2 number, since 2×250220066² = 125220162858088712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49145 + ... + 53996.

Almost surely, 2^250220066 is an apocalyptic number.

250220066 is a deficient number, since it is larger than the sum of its proper divisors (125423098).

250220066 is a wasteful number, since it uses less digits than its factorization.

250220066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104356.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 250220066 is about 15818.3458680103. The cubic root of 250220066 is about 630.1453145940.

The spelling of 250220066 in words is "two hundred fifty million, two hundred twenty thousand, sixty-six".