5662181 has 16 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 4631040.

The previous prime is 5662169. The next prime is 5662201. The reversal of 5662181 is 1812665.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5662181 - 2¹⁸ = 5400037 is a prime.

It is a super-2 number, since 2×5662181² = 64120587353522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5662121) 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 15 ways as a sum of consecutive naturals, for example, 20915 + ... + 21183.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^5662181 is an apocalyptic number.

It is an amenable number.

5662181 is a deficient number, since it is larger than the sum of its proper divisors (1111579).

5662181 is a wasteful number, since it uses less digits than its factorization.

5662181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its digits is 2880, while the sum is 29.

The square root of 5662181 is about 2379.5337778649. The cubic root of 5662181 is about 178.2356534584.

The spelling of 5662181 in words is "five million, six hundred sixty-two thousand, one hundred eighty-one".