51317027 has 2 divisors, whose sum is σ = 51317028. Its totient is φ = 51317026.

The previous prime is 51317011. The next prime is 51317041. The reversal of 51317027 is 72071315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51317027 - 2⁴ = 51317011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51316987 and 51317005.

It is not a weakly prime, because it can be changed into another prime (51317047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25658513 + 25658514.

It is an arithmetic number, because the mean of its divisors is an integer number (25658514).

Almost surely, 2^51317027 is an apocalyptic number.

51317027 is a deficient number, since it is larger than the sum of its proper divisors (1).

51317027 is an equidigital number, since it uses as much as digits as its factorization.

51317027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51317027 is about 7163.5903707568. The cubic root of 51317027 is about 371.6098035050.

The spelling of 51317027 in words is "fifty-one million, three hundred seventeen thousand, twenty-seven".