51773929 has 2 divisors, whose sum is σ = 51773930. Its totient is φ = 51773928.

The previous prime is 51773927. The next prime is 51773947. The reversal of 51773929 is 92937715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50083929 + 1690000 = 7077^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 51773929 - 2¹ = 51773927 is a prime.

Together with 51773927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51773921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25886964 + 25886965.

It is an arithmetic number, because the mean of its divisors is an integer number (25886965).

Almost surely, 2^51773929 is an apocalyptic number.

It is an amenable number.

51773929 is a deficient number, since it is larger than the sum of its proper divisors (1).

51773929 is an equidigital number, since it uses as much as digits as its factorization.

51773929 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 51773929 is about 7195.4102732228. The cubic root of 51773929 is about 372.7094244495.

The spelling of 51773929 in words is "fifty-one million, seven hundred seventy-three thousand, nine hundred twenty-nine".