51040271 has 2 divisors, whose sum is σ = 51040272. Its totient is φ = 51040270.

The previous prime is 51040259. The next prime is 51040321. The reversal of 51040271 is 17204015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51040271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51040211) 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, 25520135 + 25520136.

It is an arithmetic number, because the mean of its divisors is an integer number (25520136).

Almost surely, 2^51040271 is an apocalyptic number.

51040271 is a deficient number, since it is larger than the sum of its proper divisors (1).

51040271 is an equidigital number, since it uses as much as digits as its factorization.

51040271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 51040271 is about 7144.2474061303. The cubic root of 51040271 is about 370.9405605111.

Adding to 51040271 its reverse (17204015), we get a palindrome (68244286).

The spelling of 51040271 in words is "fifty-one million, forty thousand, two hundred seventy-one".