51688883 has 2 divisors, whose sum is σ = 51688884. Its totient is φ = 51688882.

The previous prime is 51688877. The next prime is 51688909. The reversal of 51688883 is 38888615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51688883 - 2⁸ = 51688627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51685883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25844441 + 25844442.

It is an arithmetic number, because the mean of its divisors is an integer number (25844442).

Almost surely, 2^51688883 is an apocalyptic number.

51688883 is a deficient number, since it is larger than the sum of its proper divisors (1).

51688883 is an equidigital number, since it uses as much as digits as its factorization.

51688883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 47.

The square root of 51688883 is about 7189.4981048749. The cubic root of 51688883 is about 372.5052366274.

The spelling of 51688883 in words is "fifty-one million, six hundred eighty-eight thousand, eight hundred eighty-three".