51349307 has 2 divisors, whose sum is σ = 51349308. Its totient is φ = 51349306.

The previous prime is 51349301. The next prime is 51349321. The reversal of 51349307 is 70394315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51349307 - 2²⁴ = 34572091 is a prime.

It is not a weakly prime, because it can be changed into another prime (51349301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25674653 + 25674654.

It is an arithmetic number, because the mean of its divisors is an integer number (25674654).

Almost surely, 2^51349307 is an apocalyptic number.

51349307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51349307 is an equidigital number, since it uses as much as digits as its factorization.

51349307 is an odious number, because the sum of its binary digits is odd.

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

The square root of 51349307 is about 7165.8430767077. The cubic root of 51349307 is about 371.6877051999.

It can be divided in two parts, 5134 and 9307, that added together give a palindrome (14441).

The spelling of 51349307 in words is "fifty-one million, three hundred forty-nine thousand, three hundred seven".