12551045055451 has 4 divisors (see below), whose sum is σ = 14344051491952. Its totient is φ = 10758038618952.

The previous prime is 12551045055379. The next prime is 12551045055463. The reversal of 12551045055451 is 15455054015521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12551045055451 - 2²⁵ = 12551011501019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12551045055398 and 12551045055407.

It is not an unprimeable number, because it can be changed into a prime (12551045055251) 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, 896503218240 + ... + 896503218253.

It is an arithmetic number, because the mean of its divisors is an integer number (3586012872988).

Almost surely, 2^{12551045055451} is an apocalyptic number.

12551045055451 is a deficient number, since it is larger than the sum of its proper divisors (1793006436501).

12551045055451 is an equidigital number, since it uses as much as digits as its factorization.

12551045055451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793006436500.

The product of its (nonzero) digits is 500000, while the sum is 43.

The spelling of 12551045055451 in words is "twelve trillion, five hundred fifty-one billion, forty-five million, fifty-five thousand, four hundred fifty-one".