5256169 has 4 divisors (see below), whose sum is σ = 5355396. Its totient is φ = 5156944.

The previous prime is 5256137. The next prime is 5256197. The reversal of 5256169 is 9616525.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2059225 + 3196944 = 1435^2 + 1788^2 .

It is a cyclic number.

It is not a de Polignac number, because 5256169 - 2⁵ = 5256137 is a prime.

It is a super-2 number, since 2×5256169² = 55254625113122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

5256169 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256269) 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, 49534 + ... + 49639.

It is an arithmetic number, because the mean of its divisors is an integer number (1338849).

Almost surely, 2^5256169 is an apocalyptic number.

It is an amenable number.

5256169 is a deficient number, since it is larger than the sum of its proper divisors (99227).

5256169 is an equidigital number, since it uses as much as digits as its factorization.

5256169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99226.

The product of its digits is 16200, while the sum is 34.

The square root of 5256169 is about 2292.6336384167. The cubic root of 5256169 is about 173.8693805452.

It can be divided in two parts, 525616 and 9, that added together give a square (525625 = 725²).

The spelling of 5256169 in words is "five million, two hundred fifty-six thousand, one hundred sixty-nine".