5668181 has 4 divisors (see below), whose sum is σ = 5761164. Its totient is φ = 5575200.

The previous prime is 5668177. The next prime is 5668211. The reversal of 5668181 is 1818665.

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 70225 + 5597956 = 265^2 + 2366^2 .

It is a cyclic number.

It is not a de Polignac number, because 5668181 - 2² = 5668177 is a prime.

It is a super-2 number, since 2×5668181² = 64256551697522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5668151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46400 + ... + 46521.

It is an arithmetic number, because the mean of its divisors is an integer number (1440291).

Almost surely, 2^5668181 is an apocalyptic number.

It is an amenable number.

5668181 is a deficient number, since it is larger than the sum of its proper divisors (92983).

5668181 is an equidigital number, since it uses as much as digits as its factorization.

5668181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92982.

The product of its digits is 11520, while the sum is 35.

The square root of 5668181 is about 2380.7941952214. The cubic root of 5668181 is about 178.2985877708.

The spelling of 5668181 in words is "five million, six hundred sixty-eight thousand, one hundred eighty-one".