12553221513 has 8 divisors (see below), whose sum is σ = 19128718528. Its totient is φ = 7173269424.

The previous prime is 12553221433. The next prime is 12553221529. The reversal of 12553221513 is 31512235521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12553221513 - 2³² = 8258254217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12553221013) 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, 298886206 + ... + 298886247.

It is an arithmetic number, because the mean of its divisors is an integer number (2391089816).

Almost surely, 2^12553221513 is an apocalyptic number.

It is an amenable number.

12553221513 is a deficient number, since it is larger than the sum of its proper divisors (6575497015).

12553221513 is an equidigital number, since it uses as much as digits as its factorization.

12553221513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597772463.

The product of its digits is 9000, while the sum is 30.

The spelling of 12553221513 in words is "twelve billion, five hundred fifty-three million, two hundred twenty-one thousand, five hundred thirteen".