51930163 has 2 divisors, whose sum is σ = 51930164. Its totient is φ = 51930162.

The previous prime is 51930157. The next prime is 51930199. The reversal of 51930163 is 36103915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51930163 - 2¹⁷ = 51799091 is a prime.

It is equal to p_3109915 and since 51930163 and 3109915 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 (51936163) 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, 25965081 + 25965082.

It is an arithmetic number, because the mean of its divisors is an integer number (25965082).

Almost surely, 2^51930163 is an apocalyptic number.

51930163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51930163 is an equidigital number, since it uses as much as digits as its factorization.

51930163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 51930163 is about 7206.2585993010. The cubic root of 51930163 is about 373.0839463467.

The spelling of 51930163 in words is "fifty-one million, nine hundred thirty thousand, one hundred sixty-three".