51340193 has 2 divisors, whose sum is σ = 51340194. Its totient is φ = 51340192.

The previous prime is 51340189. The next prime is 51340213. The reversal of 51340193 is 39104315.

51340193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28376929 + 22963264 = 5327^2 + 4792^2 .

It is a cyclic number.

It is not a de Polignac number, because 51340193 - 2² = 51340189 is a prime.

It is not a weakly prime, because it can be changed into another prime (51346193) 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, 25670096 + 25670097.

It is an arithmetic number, because the mean of its divisors is an integer number (25670097).

Almost surely, 2^51340193 is an apocalyptic number.

It is an amenable number.

51340193 is a deficient number, since it is larger than the sum of its proper divisors (1).

51340193 is an equidigital number, since it uses as much as digits as its factorization.

51340193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 51340193 is about 7165.2071149409. The cubic root of 51340193 is about 371.6657135874.

The spelling of 51340193 in words is "fifty-one million, three hundred forty thousand, one hundred ninety-three".