12504530532520 has 256 divisors, whose sum is σ = 32998132823040. Its totient is φ = 4222391943168.

The previous prime is 12504530532449. The next prime is 12504530532521. The reversal of 12504530532520 is 2523503540521.

12504530532520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12504530532520.

It is not an unprimeable number, because it can be changed into a prime (12504530532521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73277937 + ... + 73448383.

It is an arithmetic number, because the mean of its divisors is an integer number (128898956340).

Almost surely, 2^{12504530532520} is an apocalyptic number.

12504530532520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12504530532520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16499066411520).

12504530532520 is an abundant number, since it is smaller than the sum of its proper divisors (20493602290520).

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

12504530532520 is a wasteful number, since it uses less digits than its factorization.

12504530532520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170724 (or 170720 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 12504530532520 in words is "twelve trillion, five hundred four billion, five hundred thirty million, five hundred thirty-two thousand, five hundred twenty".