15525647872013 has 8 divisors (see below), whose sum is σ = 15945314903040. Its totient is φ = 15105983731920.

The previous prime is 15525647871991. The next prime is 15525647872057. The reversal of 15525647872013 is 31027874652551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15525647872013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15525647872013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15525647872093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14361248 + ... + 15404438.

It is an arithmetic number, because the mean of its divisors is an integer number (1993164362880).

Almost surely, 2^{15525647872013} is an apocalyptic number.

It is an amenable number.

15525647872013 is a deficient number, since it is larger than the sum of its proper divisors (419667031027).

15525647872013 is a wasteful number, since it uses less digits than its factorization.

15525647872013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445467.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 15525647872013 in words is "fifteen trillion, five hundred twenty-five billion, six hundred forty-seven million, eight hundred seventy-two thousand, thirteen".