5256181 has 6 divisors (see below), whose sum is σ = 6114390. Its totient is φ = 4505256.

The previous prime is 5256137. The next prime is 5256197. The reversal of 5256181 is 1816525.

5256181 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2775556 + 2480625 = 1666^2 + 1575^2 .

It is not a de Polignac number, because 5256181 - 2²¹ = 3159029 is a prime.

It is a super-2 number, since 2×5256181² = 55254877409522, which contains 22 as substring.

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

It is a Duffinian number.

5256181 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53586 + ... + 53683.

It is an arithmetic number, because the mean of its divisors is an integer number (1019065).

Almost surely, 2^5256181 is an apocalyptic number.

It is an amenable number.

5256181 is a deficient number, since it is larger than the sum of its proper divisors (858209).

5256181 is a wasteful number, since it uses less digits than its factorization.

5256181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107283 (or 107276 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 5256181 is about 2292.6362554928. The cubic root of 5256181 is about 173.8695128615.

The spelling of 5256181 in words is "five million, two hundred fifty-six thousand, one hundred eighty-one".