5528581 has 2 divisors, whose sum is σ = 5528582. Its totient is φ = 5528580.

The previous prime is 5528543. The next prime is 5528603. The reversal of 5528581 is 1858255.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5085025 + 443556 = 2255^2 + 666^2 .

It is a cyclic number.

It is not a de Polignac number, because 5528581 - 2¹¹ = 5526533 is a prime.

It is a super-2 number, since 2×5528581² = 61130415747122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5528681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2764290 + 2764291.

It is an arithmetic number, because the mean of its divisors is an integer number (2764291).

Almost surely, 2^5528581 is an apocalyptic number.

It is an amenable number.

5528581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5528581 is an equidigital number, since it uses as much as digits as its factorization.

5528581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16000, while the sum is 34.

The square root of 5528581 is about 2351.2934738139. The cubic root of 5528581 is about 176.8226489176.

The spelling of 5528581 in words is "five million, five hundred twenty-eight thousand, five hundred eighty-one".