12525320415 has 16 divisors (see below), whose sum is σ = 20056236768. Its totient is φ = 6674929536.

The previous prime is 12525320377. The next prime is 12525320419. The reversal of 12525320415 is 51402352521.

It is not a de Polignac number, because 12525320415 - 2¹¹ = 12525318367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525320419) 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 15 ways as a sum of consecutive naturals, for example, 307792 + ... + 346101.

It is an arithmetic number, because the mean of its divisors is an integer number (1253514798).

Almost surely, 2^12525320415 is an apocalyptic number.

12525320415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12525320415 is a deficient number, since it is larger than the sum of its proper divisors (7530916353).

12525320415 is a wasteful number, since it uses less digits than its factorization.

12525320415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655178.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12525320415 its reverse (51402352521), we get a palindrome (63927672936).

The spelling of 12525320415 in words is "twelve billion, five hundred twenty-five million, three hundred twenty thousand, four hundred fifteen".