51927973 has 2 divisors, whose sum is σ = 51927974. Its totient is φ = 51927972.

The previous prime is 51927971. The next prime is 51928027. The reversal of 51927973 is 37972915.

51927973 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 can be written as a sum of positive squares in only one way, i.e., 45131524 + 6796449 = 6718^2 + 2607^2 .

It is a cyclic number.

It is not a de Polignac number, because 51927973 - 2¹ = 51927971 is a prime.

Together with 51927971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51927971) 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, 25963986 + 25963987.

It is an arithmetic number, because the mean of its divisors is an integer number (25963987).

Almost surely, 2^51927973 is an apocalyptic number.

It is an amenable number.

51927973 is a deficient number, since it is larger than the sum of its proper divisors (1).

51927973 is an equidigital number, since it uses as much as digits as its factorization.

51927973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 43.

The square root of 51927973 is about 7206.1066464492. The cubic root of 51927973 is about 373.0787017048.

It can be divided in two parts, 51927 and 973, that added together give a square (52900 = 230²).

The spelling of 51927973 in words is "fifty-one million, nine hundred twenty-seven thousand, nine hundred seventy-three".