51943673 has 2 divisors, whose sum is σ = 51943674. Its totient is φ = 51943672.

The previous prime is 51943651. The next prime is 51943681. The reversal of 51943673 is 37634915.

It is a happy number.

51943673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35557369 + 16386304 = 5963^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 51943673 - 2⁸ = 51943417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51943603) 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, 25971836 + 25971837.

It is an arithmetic number, because the mean of its divisors is an integer number (25971837).

Almost surely, 2^51943673 is an apocalyptic number.

It is an amenable number.

51943673 is a deficient number, since it is larger than the sum of its proper divisors (1).

51943673 is an equidigital number, since it uses as much as digits as its factorization.

51943673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 51943673 is about 7207.1959179698. The cubic root of 51943673 is about 373.1162970192.

The spelling of 51943673 in words is "fifty-one million, nine hundred forty-three thousand, six hundred seventy-three".