51235271 has 2 divisors, whose sum is σ = 51235272. Its totient is φ = 51235270.

The previous prime is 51235241. The next prime is 51235291. The reversal of 51235271 is 17253215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51235271 - 2⁶ = 51235207 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51235271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51235201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25617635 + 25617636.

It is an arithmetic number, because the mean of its divisors is an integer number (25617636).

Almost surely, 2^51235271 is an apocalyptic number.

51235271 is a deficient number, since it is larger than the sum of its proper divisors (1).

51235271 is an equidigital number, since it uses as much as digits as its factorization.

51235271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 26.

The square root of 51235271 is about 7157.8817397328. The cubic root of 51235271 is about 371.4123545540.

Adding to 51235271 its reverse (17253215), we get a palindrome (68488486).

The spelling of 51235271 in words is "fifty-one million, two hundred thirty-five thousand, two hundred seventy-one".