12555005113501 has 4 divisors (see below), whose sum is σ = 12767801810400. Its totient is φ = 12342208416604.

The previous prime is 12555005113493. The next prime is 12555005113507. The reversal of 12555005113501 is 10531150055521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12555005113501 - 2³ = 12555005113493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555005113507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106398348361 + ... + 106398348478.

It is an arithmetic number, because the mean of its divisors is an integer number (3191950452600).

Almost surely, 2^{12555005113501} is an apocalyptic number.

It is an amenable number.

12555005113501 is a deficient number, since it is larger than the sum of its proper divisors (212796696899).

12555005113501 is an equidigital number, since it uses as much as digits as its factorization.

12555005113501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212796696898.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 12555005113501 in words is "twelve trillion, five hundred fifty-five billion, five million, one hundred thirteen thousand, five hundred one".