51968863 has 2 divisors, whose sum is σ = 51968864. Its totient is φ = 51968862.

The previous prime is 51968827. The next prime is 51968893. The reversal of 51968863 is 36886915.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51968863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51968893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25984431 + 25984432.

It is an arithmetic number, because the mean of its divisors is an integer number (25984432).

Almost surely, 2^51968863 is an apocalyptic number.

51968863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51968863 is an equidigital number, since it uses as much as digits as its factorization.

51968863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 51968863 is about 7208.9432651395. The cubic root of 51968863 is about 373.1766013199.

The spelling of 51968863 in words is "fifty-one million, nine hundred sixty-eight thousand, eight hundred sixty-three".