20425303 has 2 divisors, whose sum is σ = 20425304. Its totient is φ = 20425302.

The previous prime is 20425291. The next prime is 20425319. The reversal of 20425303 is 30352402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20425303 - 2⁵ = 20425271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20425333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212651 + 10212652.

It is an arithmetic number, because the mean of its divisors is an integer number (10212652).

Almost surely, 2^20425303 is an apocalyptic number.

20425303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425303 is an equidigital number, since it uses as much as digits as its factorization.

20425303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20425303 is about 4519.4361373959. The cubic root of 20425303 is about 273.3523651564.

Adding to 20425303 its reverse (30352402), we get a palindrome (50777705).

The spelling of 20425303 in words is "twenty million, four hundred twenty-five thousand, three hundred three".