51679723 has 2 divisors, whose sum is σ = 51679724. Its totient is φ = 51679722.

The previous prime is 51679709. The next prime is 51679741. The reversal of 51679723 is 32797615.

51679723 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 51679723 - 2⁹ = 51679211 is a prime.

It is not a weakly prime, because it can be changed into another prime (51679123) 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, 25839861 + 25839862.

It is an arithmetic number, because the mean of its divisors is an integer number (25839862).

Almost surely, 2^51679723 is an apocalyptic number.

51679723 is a deficient number, since it is larger than the sum of its proper divisors (1).

51679723 is an equidigital number, since it uses as much as digits as its factorization.

51679723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 51679723 is about 7188.8610363534. The cubic root of 51679723 is about 372.4832309314.

The spelling of 51679723 in words is "fifty-one million, six hundred seventy-nine thousand, seven hundred twenty-three".