12525312605 has 8 divisors (see below), whose sum is σ = 16186557912. Its totient is φ = 9249461568.

The previous prime is 12525312533. The next prime is 12525312617. The reversal of 12525312605 is 50621352521.

12525312605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 155201764 + 12370110841 = 12458^2 + 111221^2 .

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 12525312605 - 2¹⁴ = 12525296221 is a prime.

It is a super-3 number, since 3×12525312605³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96348494 + ... + 96348623.

It is an arithmetic number, because the mean of its divisors is an integer number (2023319739).

Almost surely, 2^12525312605 is an apocalyptic number.

It is an amenable number.

12525312605 is a deficient number, since it is larger than the sum of its proper divisors (3661245307).

12525312605 is a wasteful number, since it uses less digits than its factorization.

12525312605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192697135.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 12525312605 in words is "twelve billion, five hundred twenty-five million, three hundred twelve thousand, six hundred five".