12530003526 has 96 divisors (see below), whose sum is σ = 28838654208. Its totient is φ = 3923536320.

The previous prime is 12530003513. The next prime is 12530003543. The reversal of 12530003526 is 62530003521.

12530003526 is a `hidden beast` number, since 1 + 2 + 5 + 300 + 0 + 352 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12530003526.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15449661 + ... + 15450471.

It is an arithmetic number, because the mean of its divisors is an integer number (300402648).

Almost surely, 2^12530003526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12530003526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14419327104).

12530003526 is an abundant number, since it is smaller than the sum of its proper divisors (16308650682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12530003526 is a wasteful number, since it uses less digits than its factorization.

12530003526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 12530003526 in words is "twelve billion, five hundred thirty million, three thousand, five hundred twenty-six".