20524163 has 8 divisors (see below), whose sum is σ = 22562496. Its totient is φ = 18514600.

The previous prime is 20524129. The next prime is 20524187. The reversal of 20524163 is 36142502.

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 20524163 - 2⁶ = 20524099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20524103) 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 in 7 ways as a sum of consecutive naturals, for example, 5681 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (2820312).

Almost surely, 2^20524163 is an apocalyptic number.

20524163 is a deficient number, since it is larger than the sum of its proper divisors (2038333).

20524163 is a wasteful number, since it uses less digits than its factorization.

20524163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14385.

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

The square root of 20524163 is about 4530.3601402096. The cubic root of 20524163 is about 273.7926708710.

Adding to 20524163 its reverse (36142502), we get a palindrome (56666665).

The spelling of 20524163 in words is "twenty million, five hundred twenty-four thousand, one hundred sixty-three".