12535253504 has 20 divisors (see below), whose sum is σ = 25046025114. Its totient is φ = 6267626496.

The previous prime is 12535253461. The next prime is 12535253519. The reversal of 12535253504 is 40535253521.

It can be written as a sum of positive squares in only one way, i.e., 12022683904 + 512569600 = 109648^2 + 22640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12240947 + ... + 12241970.

Almost surely, 2^12535253504 is an apocalyptic number.

It is an amenable number.

12535253504 is a deficient number, since it is larger than the sum of its proper divisors (12510771610).

12535253504 is an frugal number, since it uses more digits than its factorization.

12535253504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24482935 (or 24482919 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 12535253504 in words is "twelve billion, five hundred thirty-five million, two hundred fifty-three thousand, five hundred four".