13135263202025 has 6 divisors (see below), whose sum is σ = 16287726370542. Its totient is φ = 10508210561600.

The previous prime is 13135263202013. The next prime is 13135263202043. The reversal of 13135263202025 is 52020236253131.

It can be written as a sum of positive squares in 3 ways, for example, as 79499749849 + 13055763452176 = 281957^2 + 3613276^2 .

It is not a de Polignac number, because 13135263202025 - 2⁶ = 13135263201961 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, 262705264016 + ... + 262705264065.

It is an arithmetic number, because the mean of its divisors is an integer number (2714621061757).

Almost surely, 2^{13135263202025} is an apocalyptic number.

It is an amenable number.

13135263202025 is a deficient number, since it is larger than the sum of its proper divisors (3152463168517).

13135263202025 is an equidigital number, since it uses as much as digits as its factorization.

13135263202025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525410528091 (or 525410528086 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 13135263202025 its reverse (52020236253131), we get a palindrome (65155499455156).

The spelling of 13135263202025 in words is "thirteen trillion, one hundred thirty-five billion, two hundred sixty-three million, two hundred two thousand, twenty-five".