5331681 has 12 divisors (see below), whose sum is σ = 7889700. Its totient is φ = 3467520.

The previous prime is 5331661. The next prime is 5331691. The reversal of 5331681 is 1861335.

It can be written as a sum of positive squares in 2 ways, for example, as 2944656 + 2387025 = 1716^2 + 1545^2 .

It is not a de Polignac number, because 5331681 - 2⁵ = 5331649 is a prime.

It is a super-2 number, since 2×5331681² = 56853644571522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5331661) 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 11 ways as a sum of consecutive naturals, for example, 6856 + ... + 7593.

It is an arithmetic number, because the mean of its divisors is an integer number (657475).

Almost surely, 2^5331681 is an apocalyptic number.

It is an amenable number.

5331681 is a deficient number, since it is larger than the sum of its proper divisors (2558019).

5331681 is a wasteful number, since it uses less digits than its factorization.

5331681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14496 (or 14493 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 5331681 is about 2309.0433083855. The cubic root of 5331681 is about 174.6980480071.

The spelling of 5331681 in words is "five million, three hundred thirty-one thousand, six hundred eighty-one".