51783349 has 2 divisors, whose sum is σ = 51783350. Its totient is φ = 51783348.

The previous prime is 51783337. The next prime is 51783359. The reversal of 51783349 is 94338715.

51783349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 44100 = 7193^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 51783349 - 2⁹ = 51782837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51783359) 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, 25891674 + 25891675.

It is an arithmetic number, because the mean of its divisors is an integer number (25891675).

Almost surely, 2^51783349 is an apocalyptic number.

It is an amenable number.

51783349 is a deficient number, since it is larger than the sum of its proper divisors (1).

51783349 is an equidigital number, since it uses as much as digits as its factorization.

51783349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 51783349 is about 7196.0648273900. The cubic root of 51783349 is about 372.7320272662.

The spelling of 51783349 in words is "fifty-one million, seven hundred eighty-three thousand, three hundred forty-nine".