11551056051 has 4 divisors (see below), whose sum is σ = 15401408072. Its totient is φ = 7700704032.

The previous prime is 11551056043. The next prime is 11551056053. The reversal of 11551056051 is 15065015511.

11551056051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11551056051 - 2³ = 11551056043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551056053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1925176006 + ... + 1925176011.

It is an arithmetic number, because the mean of its divisors is an integer number (3850352018).

Almost surely, 2^11551056051 is an apocalyptic number.

11551056051 is a deficient number, since it is larger than the sum of its proper divisors (3850352021).

11551056051 is an equidigital number, since it uses as much as digits as its factorization.

11551056051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850352020.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11551056051 in words is "eleven billion, five hundred fifty-one million, fifty-six thousand, fifty-one".