13251502313525 has 18 divisors (see below), whose sum is σ = 19114615991970. Its totient is φ = 9086744442720.

The previous prime is 13251502313447. The next prime is 13251502313527. The reversal of 13251502313525 is 52531320515231.

It can be written as a sum of positive squares in 3 ways, for example, as 139846829521 + 13111655484004 = 373961^2 + 3621002^2 .

It is not a de Polignac number, because 13251502313525 - 2²² = 13251498119221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13251502313527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5408775230 + ... + 5408777679.

It is an arithmetic number, because the mean of its divisors is an integer number (1061923110665).

Almost surely, 2^{13251502313525} is an apocalyptic number.

It is an amenable number.

13251502313525 is a deficient number, since it is larger than the sum of its proper divisors (5863113678445).

13251502313525 is a wasteful number, since it uses less digits than its factorization.

13251502313525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10817552933 (or 10817552921 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

Adding to 13251502313525 its reverse (52531320515231), we get a palindrome (65782822828756).

The spelling of 13251502313525 in words is "thirteen trillion, two hundred fifty-one billion, five hundred two million, three hundred thirteen thousand, five hundred twenty-five".