51575393 has 2 divisors, whose sum is σ = 51575394. Its totient is φ = 51575392.

The previous prime is 51575341. The next prime is 51575401. The reversal of 51575393 is 39357515.

51575393 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., 32982049 + 18593344 = 5743^2 + 4312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51575393 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51571393) 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, 25787696 + 25787697.

It is an arithmetic number, because the mean of its divisors is an integer number (25787697).

Almost surely, 2^51575393 is an apocalyptic number.

It is an amenable number.

51575393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51575393 is an equidigital number, since it uses as much as digits as its factorization.

51575393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70875, while the sum is 38.

The square root of 51575393 is about 7181.6010053469. The cubic root of 51575393 is about 372.2324081501.

The spelling of 51575393 in words is "fifty-one million, five hundred seventy-five thousand, three hundred ninety-three".