20060566 has 4 divisors (see below), whose sum is σ = 30090852. Its totient is φ = 10030282.

The previous prime is 20060507. The next prime is 20060569. The reversal of 20060566 is 66506002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20060566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20060569) by changing a digit.

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, 5015140 + ... + 5015143.

It is an arithmetic number, because the mean of its divisors is an integer number (7522713).

Almost surely, 2^20060566 is an apocalyptic number.

20060566 is a deficient number, since it is larger than the sum of its proper divisors (10030286).

20060566 is a wasteful number, since it uses less digits than its factorization.

20060566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030285.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20060566 is about 4478.9023208818. The cubic root of 20060566 is about 271.7154878990.

Adding to 20060566 its reverse (66506002), we get a palindrome (86566568).

The spelling of 20060566 in words is "twenty million, sixty thousand, five hundred sixty-six".