51412393 has 2 divisors, whose sum is σ = 51412394. Its totient is φ = 51412392.

The previous prime is 51412381. The next prime is 51412397. The reversal of 51412393 is 39321415.

51412393 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., 47775744 + 3636649 = 6912^2 + 1907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51412393 is a prime.

It is equal to p_3080728 and since 51412393 and 3080728 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51412397) 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, 25706196 + 25706197.

It is an arithmetic number, because the mean of its divisors is an integer number (25706197).

Almost surely, 2^51412393 is an apocalyptic number.

It is an amenable number.

51412393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51412393 is an equidigital number, since it uses as much as digits as its factorization.

51412393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 51412393 is about 7170.2435802419. The cubic root of 51412393 is about 371.8398571691.

The spelling of 51412393 in words is "fifty-one million, four hundred twelve thousand, three hundred ninety-three".