51329339 has 2 divisors, whose sum is σ = 51329340. Its totient is φ = 51329338.

The previous prime is 51329309. The next prime is 51329347. The reversal of 51329339 is 93392315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51329339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51329299 and 51329308.

It is not a weakly prime, because it can be changed into another prime (51329309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25664669 + 25664670.

It is an arithmetic number, because the mean of its divisors is an integer number (25664670).

Almost surely, 2^51329339 is an apocalyptic number.

51329339 is a deficient number, since it is larger than the sum of its proper divisors (1).

51329339 is an equidigital number, since it uses as much as digits as its factorization.

51329339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21870, while the sum is 35.

The square root of 51329339 is about 7164.4496648382. The cubic root of 51329339 is about 371.6395200489.

The spelling of 51329339 in words is "fifty-one million, three hundred twenty-nine thousand, three hundred thirty-nine".