51444269 has 2 divisors, whose sum is σ = 51444270. Its totient is φ = 51444268.

The previous prime is 51444223. The next prime is 51444377. The reversal of 51444269 is 96244415.

51444269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36156169 + 15288100 = 6013^2 + 3910^2 .

It is a cyclic number.

It is not a de Polignac number, because 51444269 - 2¹² = 51440173 is a prime.

It is a super-2 number, since 2×51444269² = 5293025625888722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51464269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25722134 + 25722135.

It is an arithmetic number, because the mean of its divisors is an integer number (25722135).

Almost surely, 2^51444269 is an apocalyptic number.

It is an amenable number.

51444269 is a deficient number, since it is larger than the sum of its proper divisors (1).

51444269 is an equidigital number, since it uses as much as digits as its factorization.

51444269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 51444269 is about 7172.4660333807. The cubic root of 51444269 is about 371.9166889590.

The spelling of 51444269 in words is "fifty-one million, four hundred forty-four thousand, two hundred sixty-nine".