12251563250515 has 8 divisors (see below), whose sum is σ = 15099223898160. Its totient is φ = 9536351935392.

The previous prime is 12251563250513. The next prime is 12251563250543. The reversal of 12251563250515 is 51505236515221.

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

It is a cyclic number.

It is not a de Polignac number, because 12251563250515 - 2¹ = 12251563250513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251563250513) 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 7 ways as a sum of consecutive naturals, for example, 33112332925 + ... + 33112333294.

It is an arithmetic number, because the mean of its divisors is an integer number (1887402987270).

Almost surely, 2^{12251563250515} is an apocalyptic number.

12251563250515 is a deficient number, since it is larger than the sum of its proper divisors (2847660647645).

12251563250515 is an equidigital number, since it uses as much as digits as its factorization.

12251563250515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66224666261.

The product of its (nonzero) digits is 450000, while the sum is 43.

Adding to 12251563250515 its reverse (51505236515221), we get a palindrome (63756799765736).

The spelling of 12251563250515 in words is "twelve trillion, two hundred fifty-one billion, five hundred sixty-three million, two hundred fifty thousand, five hundred fifteen".