66250226 has 32 divisors (see below), whose sum is σ = 120130560. Its totient is φ = 26768016.

The previous prime is 66250211. The next prime is 66250253. The reversal of 66250226 is 62205266.

It is an unprimeable number.

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, 69485 + ... + 70431.

It is an arithmetic number, because the mean of its divisors is an integer number (3754080).

Almost surely, 2^66250226 is an apocalyptic number.

66250226 is a deficient number, since it is larger than the sum of its proper divisors (53880334).

66250226 is a wasteful number, since it uses less digits than its factorization.

66250226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66250226 is about 8139.4241811077. The cubic root of 66250226 is about 404.6340768395.

The spelling of 66250226 in words is "sixty-six million, two hundred fifty thousand, two hundred twenty-six".