20066522 has 16 divisors (see below), whose sum is σ = 34567872. Its totient is φ = 8557920.

The previous prime is 20066513. The next prime is 20066533. The reversal of 20066522 is 22566002.

It is a happy number.

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 in 7 ways as a sum of consecutive naturals, for example, 443 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (2160492).

Almost surely, 2^20066522 is an apocalyptic number.

20066522 is a deficient number, since it is larger than the sum of its proper divisors (14501350).

20066522 is a wasteful number, since it uses less digits than its factorization.

20066522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013.

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

The square root of 20066522 is about 4479.5671665910. The cubic root of 20066522 is about 271.7423760954.

The spelling of 20066522 in words is "twenty million, sixty-six thousand, five hundred twenty-two".