51664103 has 2 divisors, whose sum is σ = 51664104. Its totient is φ = 51664102.

The previous prime is 51664087. The next prime is 51664127. The reversal of 51664103 is 30146615.

51664103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51664103 - 2⁴ = 51664087 is a prime.

It is a super-3 number, since 3×51664103³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51666103) 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, 25832051 + 25832052.

It is an arithmetic number, because the mean of its divisors is an integer number (25832052).

Almost surely, 2^51664103 is an apocalyptic number.

51664103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51664103 is an equidigital number, since it uses as much as digits as its factorization.

51664103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51664103 is about 7187.7745512780. The cubic root of 51664103 is about 372.4456999360.

The spelling of 51664103 in words is "fifty-one million, six hundred sixty-four thousand, one hundred three".