265313126130125 has 8 divisors (see below), whose sum is σ = 331110781410552. Its totient is φ = 212250500904000.

The previous prime is 265313126130103. The next prime is 265313126130139. The reversal of 265313126130125 is 521031621313562.

It can be written as a sum of positive squares in 4 ways, for example, as 73646656188169 + 191666469941956 = 8581763^2 + 13844366^2 .

It is not a de Polignac number, because 265313126130125 - 2⁶ = 265313126130061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061252504396 + ... + 1061252504645.

It is an arithmetic number, because the mean of its divisors is an integer number (41388847676319).

Almost surely, 2^{265313126130125} is an apocalyptic number.

265313126130125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265313126130125 is a deficient number, since it is larger than the sum of its proper divisors (65797655280427).

265313126130125 is an equidigital number, since it uses as much as digits as its factorization.

265313126130125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122505009056 (or 2122505009046 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

Adding to 265313126130125 its reverse (521031621313562), we get a palindrome (786344747443687).

The spelling of 265313126130125 in words is "two hundred sixty-five trillion, three hundred thirteen billion, one hundred twenty-six million, one hundred thirty thousand, one hundred twenty-five".