51339229 has 2 divisors, whose sum is σ = 51339230. Its totient is φ = 51339228.

The previous prime is 51339191. The next prime is 51339259. The reversal of 51339229 is 92293315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38415204 + 12924025 = 6198^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 51339229 - 2⁹ = 51338717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51339194 and 51339203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51339259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25669614 + 25669615.

It is an arithmetic number, because the mean of its divisors is an integer number (25669615).

Almost surely, 2^51339229 is an apocalyptic number.

It is an amenable number.

51339229 is a deficient number, since it is larger than the sum of its proper divisors (1).

51339229 is an equidigital number, since it uses as much as digits as its factorization.

51339229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 51339229 is about 7165.1398451112. The cubic root of 51339229 is about 371.6633873529.

The spelling of 51339229 in words is "fifty-one million, three hundred thirty-nine thousand, two hundred twenty-nine".