51294263 has 2 divisors, whose sum is σ = 51294264. Its totient is φ = 51294262.

The previous prime is 51294241. The next prime is 51294283. The reversal of 51294263 is 36249215.

It is a happy number.

51294263 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 51294263 - 2¹⁰ = 51293239 is a prime.

It is a super-2 number, since 2×51294263² = 5262202833426338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51294223) 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, 25647131 + 25647132.

It is an arithmetic number, because the mean of its divisors is an integer number (25647132).

Almost surely, 2^51294263 is an apocalyptic number.

51294263 is a deficient number, since it is larger than the sum of its proper divisors (1).

51294263 is an equidigital number, since it uses as much as digits as its factorization.

51294263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 51294263 is about 7162.0013264450. The cubic root of 51294263 is about 371.5548472380.

The spelling of 51294263 in words is "fifty-one million, two hundred ninety-four thousand, two hundred sixty-three".