51000727 has 2 divisors, whose sum is σ = 51000728. Its totient is φ = 51000726.

The previous prime is 51000713. The next prime is 51000737. The reversal of 51000727 is 72700015.

51000727 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51000727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51000698 and 51000707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51000707) 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, 25500363 + 25500364.

It is an arithmetic number, because the mean of its divisors is an integer number (25500364).

Almost surely, 2^51000727 is an apocalyptic number.

51000727 is a deficient number, since it is larger than the sum of its proper divisors (1).

51000727 is an equidigital number, since it uses as much as digits as its factorization.

51000727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 51000727 is about 7141.4793285425. The cubic root of 51000727 is about 370.8447390283.

The spelling of 51000727 in words is "fifty-one million, seven hundred twenty-seven", and thus it is an aban number.