51339259 has 2 divisors, whose sum is σ = 51339260. Its totient is φ = 51339258.

The previous prime is 51339229. The next prime is 51339271. The reversal of 51339259 is 95293315.

51339259 is nontrivially palindromic in base 15.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51339259 - 2¹⁹ = 50814971 is a prime.

It is not a weakly prime, because it can be changed into another prime (51339229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25669629 + 25669630.

It is an arithmetic number, because the mean of its divisors is an integer number (25669630).

Almost surely, 2^51339259 is an apocalyptic number.

51339259 is a deficient number, since it is larger than the sum of its proper divisors (1).

51339259 is an equidigital number, since it uses as much as digits as its factorization.

51339259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36450, while the sum is 37.

The square root of 51339259 is about 7165.1419385801. The cubic root of 51339259 is about 371.6634597465.

The spelling of 51339259 in words is "fifty-one million, three hundred thirty-nine thousand, two hundred fifty-nine".