20652163 has 8 divisors (see below), whose sum is σ = 23646560. Its totient is φ = 17668800.

The previous prime is 20652157. The next prime is 20652187. The reversal of 20652163 is 36125602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20652163 - 2²¹ = 18555011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20652103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753 + ... + 6661.

It is an arithmetic number, because the mean of its divisors is an integer number (2955820).

Almost surely, 2^20652163 is an apocalyptic number.

20652163 is a deficient number, since it is larger than the sum of its proper divisors (2994397).

20652163 is an equidigital number, since it uses as much as digits as its factorization.

20652163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517.

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

The square root of 20652163 is about 4544.4650950359. The cubic root of 20652163 is about 274.3606657587.

Adding to 20652163 its reverse (36125602), we get a palindrome (56777765).

The spelling of 20652163 in words is "twenty million, six hundred fifty-two thousand, one hundred sixty-three".