12551053551 has 8 divisors (see below), whose sum is σ = 16794293424. Its totient is φ = 8337591360.

The previous prime is 12551053513. The next prime is 12551053577. The reversal of 12551053551 is 15535015521.

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

It is not a de Polignac number, because 12551053551 - 2²⁶ = 12483944687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551053451) 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, 7443436 + ... + 7445121.

It is an arithmetic number, because the mean of its divisors is an integer number (2099286678).

Almost surely, 2^12551053551 is an apocalyptic number.

12551053551 is a deficient number, since it is larger than the sum of its proper divisors (4243239873).

12551053551 is a wasteful number, since it uses less digits than its factorization.

12551053551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14888841.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 12551053551 in words is "twelve billion, five hundred fifty-one million, fifty-three thousand, five hundred fifty-one".