20303417425 has 6 divisors (see below), whose sum is σ = 25176237638. Its totient is φ = 16242733920.

The previous prime is 20303417413. The next prime is 20303417443. The reversal of 20303417425 is 52471430302.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 827540289 + 19475877136 = 28767^2 + 139556^2 .

It is not a de Polignac number, because 20303417425 - 2¹³ = 20303409233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 406068324 + ... + 406068373.

Almost surely, 2^20303417425 is an apocalyptic number.

20303417425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20303417425 is a deficient number, since it is larger than the sum of its proper divisors (4872820213).

20303417425 is an equidigital number, since it uses as much as digits as its factorization.

20303417425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812136707 (or 812136702 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 20303417425 its reverse (52471430302), we get a palindrome (72774847727).

The spelling of 20303417425 in words is "twenty billion, three hundred three million, four hundred seventeen thousand, four hundred twenty-five".