12524534521 has 8 divisors (see below), whose sum is σ = 12865606344. Its totient is φ = 12183598080.

The previous prime is 12524534483. The next prime is 12524534537. The reversal of 12524534521 is 12543542521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2321312400 + 10203222121 = 48180^2 + 101011^2 .

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 12524534521 - 2¹¹ = 12524532473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12524534021) 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, 170211 + ... + 232423.

It is an arithmetic number, because the mean of its divisors is an integer number (1608200793).

Almost surely, 2^12524534521 is an apocalyptic number.

It is an amenable number.

12524534521 is a deficient number, since it is larger than the sum of its proper divisors (341071823).

12524534521 is an equidigital number, since it uses as much as digits as its factorization.

12524534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67691.

The product of its digits is 48000, while the sum is 34.

The spelling of 12524534521 in words is "twelve billion, five hundred twenty-four million, five hundred thirty-four thousand, five hundred twenty-one".