51490063 has 2 divisors, whose sum is σ = 51490064. Its totient is φ = 51490062.

The previous prime is 51490037. The next prime is 51490069. The reversal of 51490063 is 36009415.

51490063 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 51490063 - 2¹⁷ = 51358991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51490069) 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, 25745031 + 25745032.

It is an arithmetic number, because the mean of its divisors is an integer number (25745032).

Almost surely, 2^51490063 is an apocalyptic number.

51490063 is a deficient number, since it is larger than the sum of its proper divisors (1).

51490063 is an equidigital number, since it uses as much as digits as its factorization.

51490063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 51490063 is about 7175.6576702070. The cubic root of 51490063 is about 372.0270122405.

Adding to 51490063 its reverse (36009415), we get a palindrome (87499478).

The spelling of 51490063 in words is "fifty-one million, four hundred ninety thousand, sixty-three".