51270871 has 2 divisors, whose sum is σ = 51270872. Its totient is φ = 51270870.

The previous prime is 51270851. The next prime is 51270881. The reversal of 51270871 is 17807215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51270871 - 2⁵ = 51270839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51270851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25635435 + 25635436.

It is an arithmetic number, because the mean of its divisors is an integer number (25635436).

Almost surely, 2^51270871 is an apocalyptic number.

51270871 is a deficient number, since it is larger than the sum of its proper divisors (1).

51270871 is an equidigital number, since it uses as much as digits as its factorization.

51270871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 51270871 is about 7160.3680771312. The cubic root of 51270871 is about 371.4983579284.

The spelling of 51270871 in words is "fifty-one million, two hundred seventy thousand, eight hundred seventy-one".