12512523530 has 96 divisors (see below), whose sum is σ = 26038454400. Its totient is φ = 4301714304.

The previous prime is 12512523509. The next prime is 12512523559. The reversal of 12512523530 is 3532521521.

It is a junction number, because it is equal to n+sod(n) for n = 12512523493 and 12512523502.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2766611 + ... + 2771129.

It is an arithmetic number, because the mean of its divisors is an integer number (271233900).

Almost surely, 2^12512523530 is an apocalyptic number.

12512523530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512523530 is an abundant number, since it is smaller than the sum of its proper divisors (13525930870).

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

12512523530 is a wasteful number, since it uses less digits than its factorization.

12512523530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636 (or 4617 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 12512523530 in words is "twelve billion, five hundred twelve million, five hundred twenty-three thousand, five hundred thirty".