5525581 has 2 divisors, whose sum is σ = 5525582. Its totient is φ = 5525580.

The previous prime is 5525549. The next prime is 5525591. The reversal of 5525581 is 1855255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5103081 + 422500 = 2259^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5525581 - 2⁵ = 5525549 is a prime.

It is a super-2 number, since 2×5525581² = 61064090775122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5525501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762790 + 2762791.

It is an arithmetic number, because the mean of its divisors is an integer number (2762791).

Almost surely, 2^5525581 is an apocalyptic number.

It is an amenable number.

5525581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5525581 is an equidigital number, since it uses as much as digits as its factorization.

5525581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10000, while the sum is 31.

The square root of 5525581 is about 2350.6554405102. The cubic root of 5525581 is about 176.7906597613.

The spelling of 5525581 in words is "five million, five hundred twenty-five thousand, five hundred eighty-one".