5256687 has 4 divisors (see below), whose sum is σ = 7008920. Its totient is φ = 3504456.

The previous prime is 5256683. The next prime is 5256697. The reversal of 5256687 is 7866525.

It is a happy number.

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

It is not a de Polignac number, because 5256687 - 2² = 5256683 is a prime.

It is a D-number.

It is a Duffinian number.

5256687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876112 + ... + 876117.

It is an arithmetic number, because the mean of its divisors is an integer number (1752230).

Almost surely, 2^5256687 is an apocalyptic number.

5256687 is a deficient number, since it is larger than the sum of its proper divisors (1752233).

5256687 is a wasteful number, since it uses less digits than its factorization.

5256687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752232.

The product of its digits is 100800, while the sum is 39.

The square root of 5256687 is about 2292.7466061473. The cubic root of 5256687 is about 173.8750920168.

The spelling of 5256687 in words is "five million, two hundred fifty-six thousand, six hundred eighty-seven".