51343793 has 2 divisors, whose sum is σ = 51343794. Its totient is φ = 51343792.

The previous prime is 51343771. The next prime is 51343829. The reversal of 51343793 is 39734315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43983424 + 7360369 = 6632^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 51343793 - 2⁶ = 51343729 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 (51313793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671896 + 25671897.

It is an arithmetic number, because the mean of its divisors is an integer number (25671897).

Almost surely, 2^51343793 is an apocalyptic number.

It is an amenable number.

51343793 is a deficient number, since it is larger than the sum of its proper divisors (1).

51343793 is an equidigital number, since it uses as much as digits as its factorization.

51343793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 35.

The square root of 51343793 is about 7165.4583244898. The cubic root of 51343793 is about 371.6744005129.

The spelling of 51343793 in words is "fifty-one million, three hundred forty-three thousand, seven hundred ninety-three".