5256871 has 4 divisors (see below), whose sum is σ = 5268832. Its totient is φ = 5244912.

The previous prime is 5256851. The next prime is 5256883. The reversal of 5256871 is 1786525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5256871 - 2⁹ = 5256359 is a prime.

It is a Duffinian number.

5256871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256821) 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 in 3 ways as a sum of consecutive naturals, for example, 5295 + ... + 6208.

It is an arithmetic number, because the mean of its divisors is an integer number (1317208).

Almost surely, 2^5256871 is an apocalyptic number.

5256871 is a deficient number, since it is larger than the sum of its proper divisors (11961).

5256871 is a wasteful number, since it uses less digits than its factorization.

5256871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11960.

The product of its digits is 16800, while the sum is 34.

The square root of 5256871 is about 2292.7867323412. The cubic root of 5256871 is about 173.8771207118.

It can be divided in two parts, 525 and 6871, that added together give a square (7396 = 86²).

The spelling of 5256871 in words is "five million, two hundred fifty-six thousand, eight hundred seventy-one".