12508313555 has 8 divisors (see below), whose sum is σ = 15011266032. Its totient is φ = 10005791008.

The previous prime is 12508313551. The next prime is 12508313569. The reversal of 12508313555 is 55531380521.

It is a happy number.

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 12508313555 - 2² = 12508313551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12508313551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39572 + ... + 163041.

It is an arithmetic number, because the mean of its divisors is an integer number (1876408254).

Almost surely, 2^12508313555 is an apocalyptic number.

12508313555 is a deficient number, since it is larger than the sum of its proper divisors (2502952477).

12508313555 is a wasteful number, since it uses less digits than its factorization.

12508313555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214965.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 12508313555 in words is "twelve billion, five hundred eight million, three hundred thirteen thousand, five hundred fifty-five".