27650066 has 4 divisors (see below), whose sum is σ = 41475102. Its totient is φ = 13825032.

The previous prime is 27650057. The next prime is 27650099. The reversal of 27650066 is 66005672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17884441 + 9765625 = 4229^2 + 3125^2 .

It is a super-2 number, since 2×27650066² = 1529052299608712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912515 + ... + 6912518.

Almost surely, 2^27650066 is an apocalyptic number.

27650066 is a deficient number, since it is larger than the sum of its proper divisors (13825036).

27650066 is a wasteful number, since it uses less digits than its factorization.

27650066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13825035.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 27650066 is about 5258.3330058109. Note that the first 3 decimals coincide. The cubic root of 27650066 is about 302.3885836069.

The spelling of 27650066 in words is "twenty-seven million, six hundred fifty thousand, sixty-six".