12506555313 has 24 divisors (see below), whose sum is σ = 20656308608. Its totient is φ = 7142945472.

The previous prime is 12506555297. The next prime is 12506555323. The reversal of 12506555313 is 31355560521.

12506555313 is a `hidden beast` number, since 12 + 50 + 65 + 5 + 531 + 3 = 666.

It is not a de Polignac number, because 12506555313 - 2⁴ = 12506555297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12506555323) 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 23 ways as a sum of consecutive naturals, for example, 75756 + ... + 175362.

Almost surely, 2^12506555313 is an apocalyptic number.

It is an amenable number.

12506555313 is a deficient number, since it is larger than the sum of its proper divisors (8149753295).

12506555313 is a wasteful number, since it uses less digits than its factorization.

12506555313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101613 (or 101610 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 12506555313 in words is "twelve billion, five hundred six million, five hundred fifty-five thousand, three hundred thirteen".