51663347 has 2 divisors, whose sum is σ = 51663348. Its totient is φ = 51663346.

The previous prime is 51663319. The next prime is 51663371. The reversal of 51663347 is 74336615.

51663347 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 not a de Polignac number, because 51663347 - 2⁸ = 51663091 is a prime.

It is a Chen prime.

It is equal to p_3094838 and since 51663347 and 3094838 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51663307) 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, 25831673 + 25831674.

It is an arithmetic number, because the mean of its divisors is an integer number (25831674).

Almost surely, 2^51663347 is an apocalyptic number.

51663347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51663347 is an equidigital number, since it uses as much as digits as its factorization.

51663347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 51663347 is about 7187.7219617901. The cubic root of 51663347 is about 372.4438832631.

The spelling of 51663347 in words is "fifty-one million, six hundred sixty-three thousand, three hundred forty-seven".