12515013901255 has 8 divisors (see below), whose sum is σ = 15670973928672. Its totient is φ = 9576706289568.

The previous prime is 12515013901237. The next prime is 12515013901267. The reversal of 12515013901255 is 55210931051521.

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-12515013901255 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, 54413103804 + ... + 54413104033.

It is an arithmetic number, because the mean of its divisors is an integer number (1958871741084).

Almost surely, 2^{12515013901255} is an apocalyptic number.

12515013901255 is a deficient number, since it is larger than the sum of its proper divisors (3155960027417).

12515013901255 is a wasteful number, since it uses less digits than its factorization.

12515013901255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108826207865.

The product of its (nonzero) digits is 67500, while the sum is 40.

Adding to 12515013901255 its reverse (55210931051521), we get a palindrome (67725944952776).

The spelling of 12515013901255 in words is "twelve trillion, five hundred fifteen billion, thirteen million, nine hundred one thousand, two hundred fifty-five".