51416263 has 2 divisors, whose sum is σ = 51416264. Its totient is φ = 51416262.

The previous prime is 51416257. The next prime is 51416291. The reversal of 51416263 is 36261415.

It is an a-pointer prime, because the next prime (51416291) can be obtained adding 51416263 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51416263 - 2⁹ = 51415751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51416203) 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, 25708131 + 25708132.

It is an arithmetic number, because the mean of its divisors is an integer number (25708132).

Almost surely, 2^51416263 is an apocalyptic number.

51416263 is a deficient number, since it is larger than the sum of its proper divisors (1).

51416263 is an equidigital number, since it uses as much as digits as its factorization.

51416263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 51416263 is about 7170.5134404727. The cubic root of 51416263 is about 371.8491868531.

Adding to 51416263 its reverse (36261415), we get a palindrome (87677678).

The spelling of 51416263 in words is "fifty-one million, four hundred sixteen thousand, two hundred sixty-three".