51416503 has 2 divisors, whose sum is σ = 51416504. Its totient is φ = 51416502.

The previous prime is 51416471. The next prime is 51416513. The reversal of 51416503 is 30561415.

51416503 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 51416503 - 2⁵ = 51416471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51416513) 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, 25708251 + 25708252.

It is an arithmetic number, because the mean of its divisors is an integer number (25708252).

Almost surely, 2^51416503 is an apocalyptic number.

51416503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51416503 is an equidigital number, since it uses as much as digits as its factorization.

51416503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51416503 is about 7170.5301756565. The cubic root of 51416503 is about 371.8497654228.

Adding to 51416503 its reverse (30561415), we get a palindrome (81977918).

The spelling of 51416503 in words is "fifty-one million, four hundred sixteen thousand, five hundred three".