51422222429 has 2 divisors, whose sum is σ = 51422222430. Its totient is φ = 51422222428.

The previous prime is 51422222413. The next prime is 51422222431. The reversal of 51422222429 is 92422222415.

51422222429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48049516804 + 3372705625 = 219202^2 + 58075^2 .

It is a cyclic number.

It is not a de Polignac number, because 51422222429 - 2⁴ = 51422222413 is a prime.

Together with 51422222431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51422222479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25711111214 + 25711111215.

It is an arithmetic number, because the mean of its divisors is an integer number (25711111215).

Almost surely, 2^51422222429 is an apocalyptic number.

It is an amenable number.

51422222429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51422222429 is an equidigital number, since it uses as much as digits as its factorization.

51422222429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 35.

The spelling of 51422222429 in words is "fifty-one billion, four hundred twenty-two million, two hundred twenty-two thousand, four hundred twenty-nine".