5531081 has 2 divisors, whose sum is σ = 5531082. Its totient is φ = 5531080.

The previous prime is 5531059. The next prime is 5531087. The reversal of 5531081 is 1801355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 241081 = 2300^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531081 - 2¹⁴ = 5514697 is a prime.

It is a super-2 number, since 2×5531081² = 61185714057122, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5531087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765540 + 2765541.

It is an arithmetic number, because the mean of its divisors is an integer number (2765541).

Almost surely, 2^5531081 is an apocalyptic number.

It is an amenable number.

5531081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531081 is an equidigital number, since it uses as much as digits as its factorization.

5531081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 5531081 is about 2351.8250360093. The cubic root of 5531081 is about 176.8492977091.

The spelling of 5531081 in words is "five million, five hundred thirty-one thousand, eighty-one".