51710851 has 2 divisors, whose sum is σ = 51710852. Its totient is φ = 51710850.

The previous prime is 51710843. The next prime is 51710863. The reversal of 51710851 is 15801715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51710851 - 2³ = 51710843 is a prime.

It is a super-2 number, since 2×51710851² = 5348024222288402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51710891) 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, 25855425 + 25855426.

It is an arithmetic number, because the mean of its divisors is an integer number (25855426).

Almost surely, 2^51710851 is an apocalyptic number.

51710851 is a deficient number, since it is larger than the sum of its proper divisors (1).

51710851 is an equidigital number, since it uses as much as digits as its factorization.

51710851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 51710851 is about 7191.0257265567. The cubic root of 51710851 is about 372.5580012681.

The spelling of 51710851 in words is "fifty-one million, seven hundred ten thousand, eight hundred fifty-one".