20524223 has 2 divisors, whose sum is σ = 20524224. Its totient is φ = 20524222.

The previous prime is 20524213. The next prime is 20524241. The reversal of 20524223 is 32242502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20524223 - 2²⁰ = 19475647 is a prime.

It is equal to p_1301717 and since 20524223 and 1301717 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20524195 and 20524204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20524213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262111 + 10262112.

It is an arithmetic number, because the mean of its divisors is an integer number (10262112).

Almost surely, 2^20524223 is an apocalyptic number.

20524223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20524223 is an equidigital number, since it uses as much as digits as its factorization.

20524223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20524223 is about 4530.3667621949. The cubic root of 20524223 is about 273.7929376711.

Adding to 20524223 its reverse (32242502), we get a palindrome (52766725).

The spelling of 20524223 in words is "twenty million, five hundred twenty-four thousand, two hundred twenty-three".