20814106325 has 6 divisors (see below), whose sum is σ = 25809491874. Its totient is φ = 16651285040.

The previous prime is 20814106321. The next prime is 20814106331. The reversal of 20814106325 is 52360141802.

It can be written as a sum of positive squares in 3 ways, for example, as 7312131121 + 13501975204 = 85511^2 + 116198^2 .

It is not a de Polignac number, because 20814106325 - 2² = 20814106321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20814106291 and 20814106300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20814106321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416282102 + ... + 416282151.

It is an arithmetic number, because the mean of its divisors is an integer number (4301581979).

Almost surely, 2^20814106325 is an apocalyptic number.

20814106325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20814106325 is a deficient number, since it is larger than the sum of its proper divisors (4995385549).

20814106325 is an equidigital number, since it uses as much as digits as its factorization.

20814106325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832564263 (or 832564258 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20814106325 in words is "twenty billion, eight hundred fourteen million, one hundred six thousand, three hundred twenty-five".