20635006 has 16 divisors (see below), whose sum is σ = 35773920. Its totient is φ = 8743680.

The previous prime is 20635003. The next prime is 20635009. The reversal of 20635006 is 60053602.

It is an interprime number because it is at equal distance from previous prime (20635003) and next prime (20635009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20635003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7035 + ... + 9526.

It is an arithmetic number, because the mean of its divisors is an integer number (2235870).

Almost surely, 2^20635006 is an apocalyptic number.

20635006 is a deficient number, since it is larger than the sum of its proper divisors (15138914).

20635006 is a wasteful number, since it uses less digits than its factorization.

20635006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16659.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20635006 is about 4542.5770219117. The cubic root of 20635006 is about 274.2846687140.

Adding to 20635006 its reverse (60053602), we get a palindrome (80688608).

The spelling of 20635006 in words is "twenty million, six hundred thirty-five thousand, six".