51394307 has 2 divisors, whose sum is σ = 51394308. Its totient is φ = 51394306.

The previous prime is 51394289. The next prime is 51394309. The reversal of 51394307 is 70349315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51394307 - 2⁶ = 51394243 is a prime.

Together with 51394309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51394309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25697153 + 25697154.

It is an arithmetic number, because the mean of its divisors is an integer number (25697154).

Almost surely, 2^51394307 is an apocalyptic number.

51394307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51394307 is an equidigital number, since it uses as much as digits as its factorization.

51394307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 51394307 is about 7168.9822848156. The cubic root of 51394307 is about 371.7962497559.

The spelling of 51394307 in words is "fifty-one million, three hundred ninety-four thousand, three hundred seven".