51222430055 has 4 divisors (see below), whose sum is σ = 61466916072. Its totient is φ = 40977944040.

The previous prime is 51222429997. The next prime is 51222430121. The reversal of 51222430055 is 55003422215.

51222430055 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 51222430055 - 2⁶ = 51222429991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122243001 + ... + 5122243010.

It is an arithmetic number, because the mean of its divisors is an integer number (15366729018).

Almost surely, 2^51222430055 is an apocalyptic number.

51222430055 is a deficient number, since it is larger than the sum of its proper divisors (10244486017).

51222430055 is a wasteful number, since it uses less digits than its factorization.

51222430055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244486016.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 51222430055 in words is "fifty-one billion, two hundred twenty-two million, four hundred thirty thousand, fifty-five".