51042293 has 2 divisors, whose sum is σ = 51042294. Its totient is φ = 51042292.

The previous prime is 51042289. The next prime is 51042311. The reversal of 51042293 is 39224015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27636049 + 23406244 = 5257^2 + 4838^2 .

It is a cyclic number.

It is not a de Polignac number, because 51042293 - 2² = 51042289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51042223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25521146 + 25521147.

It is an arithmetic number, because the mean of its divisors is an integer number (25521147).

Almost surely, 2^51042293 is an apocalyptic number.

It is an amenable number.

51042293 is a deficient number, since it is larger than the sum of its proper divisors (1).

51042293 is an equidigital number, since it uses as much as digits as its factorization.

51042293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51042293 is about 7144.3889171853. The cubic root of 51042293 is about 370.9454588126.

The spelling of 51042293 in words is "fifty-one million, forty-two thousand, two hundred ninety-three".