51210827 has 2 divisors, whose sum is σ = 51210828. Its totient is φ = 51210826.

The previous prime is 51210823. The next prime is 51210883. The reversal of 51210827 is 72801215.

51210827 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 is a cyclic number.

It is not a de Polignac number, because 51210827 - 2² = 51210823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51210796 and 51210805.

It is not a weakly prime, because it can be changed into another prime (51210821) 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, 25605413 + 25605414.

It is an arithmetic number, because the mean of its divisors is an integer number (25605414).

Almost surely, 2^51210827 is an apocalyptic number.

51210827 is a deficient number, since it is larger than the sum of its proper divisors (1).

51210827 is an equidigital number, since it uses as much as digits as its factorization.

51210827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 51210827 is about 7156.1740476319. The cubic root of 51210827 is about 371.3532790538.

The spelling of 51210827 in words is "fifty-one million, two hundred ten thousand, eight hundred twenty-seven".