51825317 has 2 divisors, whose sum is σ = 51825318. Its totient is φ = 51825316.

The previous prime is 51825313. The next prime is 51825341. The reversal of 51825317 is 71352815.

51825317 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., 42003361 + 9821956 = 6481^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 51825317 - 2² = 51825313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51825311) 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, 25912658 + 25912659.

It is an arithmetic number, because the mean of its divisors is an integer number (25912659).

Almost surely, 2^51825317 is an apocalyptic number.

It is an amenable number.

51825317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51825317 is an equidigital number, since it uses as much as digits as its factorization.

51825317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 51825317 is about 7198.9802750112. The cubic root of 51825317 is about 372.8326940764.

The spelling of 51825317 in words is "fifty-one million, eight hundred twenty-five thousand, three hundred seventeen".