51043229 has 2 divisors, whose sum is σ = 51043230. Its totient is φ = 51043228.

The previous prime is 51043207. The next prime is 51043247. The reversal of 51043229 is 92234015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 8988004 = 6485^2 + 2998^2 .

It is a cyclic number.

It is not a de Polignac number, because 51043229 - 2⁸ = 51042973 is a prime.

It is a super-2 number, since 2×51043229² = 5210822453492882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51043198 and 51043207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51043259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25521614 + 25521615.

It is an arithmetic number, because the mean of its divisors is an integer number (25521615).

Almost surely, 2^51043229 is an apocalyptic number.

It is an amenable number.

51043229 is a deficient number, since it is larger than the sum of its proper divisors (1).

51043229 is an equidigital number, since it uses as much as digits as its factorization.

51043229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51043229 is about 7144.4544228373. The cubic root of 51043229 is about 370.9477262318.

The spelling of 51043229 in words is "fifty-one million, forty-three thousand, two hundred twenty-nine".