13204305444425 has 6 divisors (see below), whose sum is σ = 16373338751118. Its totient is φ = 10563444355520.

The previous prime is 13204305444413. The next prime is 13204305444433. The reversal of 13204305444425 is 52444450340231.

It can be written as a sum of positive squares in 3 ways, for example, as 577312755721 + 12626992688704 = 759811^2 + 3553448^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13204305444425 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, 264086108864 + ... + 264086108913.

It is an arithmetic number, because the mean of its divisors is an integer number (2728889791853).

Almost surely, 2^{13204305444425} is an apocalyptic number.

It is an amenable number.

13204305444425 is a deficient number, since it is larger than the sum of its proper divisors (3169033306693).

13204305444425 is an equidigital number, since it uses as much as digits as its factorization.

13204305444425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528172217787 (or 528172217782 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 13204305444425 its reverse (52444450340231), we get a palindrome (65648755784656).

The spelling of 13204305444425 in words is "thirteen trillion, two hundred four billion, three hundred five million, four hundred forty-four thousand, four hundred twenty-five".