51312707 has 2 divisors, whose sum is σ = 51312708. Its totient is φ = 51312706.

The previous prime is 51312697. The next prime is 51312721. The reversal of 51312707 is 70721315.

51312707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51312707 - 2¹⁸ = 51050563 is a prime.

It is not a weakly prime, because it can be changed into another prime (51312727) 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, 25656353 + 25656354.

It is an arithmetic number, because the mean of its divisors is an integer number (25656354).

Almost surely, 2^51312707 is an apocalyptic number.

51312707 is a deficient number, since it is larger than the sum of its proper divisors (1).

51312707 is an equidigital number, since it uses as much as digits as its factorization.

51312707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51312707 is about 7163.2888396323. The cubic root of 51312707 is about 371.5993755211.

The spelling of 51312707 in words is "fifty-one million, three hundred twelve thousand, seven hundred seven".