13515025233252 has 12 divisors (see below), whose sum is σ = 31535058877616. Its totient is φ = 4505008411080.

The previous prime is 13515025233251. The next prime is 13515025233373. The reversal of 13515025233252 is 25233252051531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13515025233252.

It is not an unprimeable number, because it can be changed into a prime (13515025233251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563126051374 + ... + 563126051397.

Almost surely, 2^{13515025233252} is an apocalyptic number.

13515025233252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13515025233252 is an abundant number, since it is smaller than the sum of its proper divisors (18020033644364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13515025233252 is a wasteful number, since it uses less digits than its factorization.

13515025233252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126252102778 (or 1126252102776 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 13515025233252 its reverse (25233252051531), we get a palindrome (38748277284783).

The spelling of 13515025233252 in words is "thirteen trillion, five hundred fifteen billion, twenty-five million, two hundred thirty-three thousand, two hundred fifty-two".