20300573 has 2 divisors, whose sum is σ = 20300574. Its totient is φ = 20300572.

The previous prime is 20300557. The next prime is 20300593. The reversal of 20300573 is 37500302.

It is an a-pointer prime, because the next prime (20300593) can be obtained adding 20300573 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19598329 + 702244 = 4427^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300573 - 2⁴ = 20300557 is a prime.

It is a super-2 number, since 2×20300573² = 824226528256658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150286 + 10150287.

It is an arithmetic number, because the mean of its divisors is an integer number (10150287).

Almost surely, 2^20300573 is an apocalyptic number.

It is an amenable number.

20300573 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300573 is an equidigital number, since it uses as much as digits as its factorization.

20300573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 20300573 is about 4505.6157181899. The cubic root of 20300573 is about 272.7948070565.

Adding to 20300573 its reverse (37500302), we get a palindrome (57800875).

The spelling of 20300573 in words is "twenty million, three hundred thousand, five hundred seventy-three".