20053606 has 4 divisors (see below), whose sum is σ = 30080412. Its totient is φ = 10026802.

The previous prime is 20053603. The next prime is 20053613. The reversal of 20053606 is 60635002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60635002 = 2 ⋅30317501.

It is a super-2 number, since 2×20053606² = 804294227206472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013400 + ... + 5013403.

It is an arithmetic number, because the mean of its divisors is an integer number (7520103).

Almost surely, 2^20053606 is an apocalyptic number.

20053606 is a deficient number, since it is larger than the sum of its proper divisors (10026806).

20053606 is a wasteful number, since it uses less digits than its factorization.

20053606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026805.

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

The square root of 20053606 is about 4478.1252773901. The cubic root of 20053606 is about 271.6840604284.

Adding to 20053606 its reverse (60635002), we get a palindrome (80688608).

The spelling of 20053606 in words is "twenty million, fifty-three thousand, six hundred six".