12512523529 has 8 divisors (see below), whose sum is σ = 13651051680. Its totient is φ = 11374166400.

The previous prime is 12512523509. The next prime is 12512523559. The reversal of 12512523529 is 92532521521.

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-12512523529 is a prime.

It is a super-2 number, since 2×12512523529² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512523509) 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, 146782 + ... + 215800.

It is an arithmetic number, because the mean of its divisors is an integer number (1706381460).

Almost surely, 2^12512523529 is an apocalyptic number.

It is an amenable number.

12512523529 is a deficient number, since it is larger than the sum of its proper divisors (1138528151).

12512523529 is a wasteful number, since it uses less digits than its factorization.

12512523529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85511.

The product of its digits is 54000, while the sum is 37.

The spelling of 12512523529 in words is "twelve billion, five hundred twelve million, five hundred twenty-three thousand, five hundred twenty-nine".