3549089561 has 2 divisors, whose sum is σ = 3549089562. Its totient is φ = 3549089560.

The previous prime is 3549089501. The next prime is 3549089603. The reversal of 3549089561 is 1659809453.

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., 3542035225 + 7054336 = 59515^2 + 2656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3549089561 is a prime.

It is not a weakly prime, because it can be changed into another prime (3549089501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774544780 + 1774544781.

It is an arithmetic number, because the mean of its divisors is an integer number (1774544781).

Almost surely, 2^3549089561 is an apocalyptic number.

It is an amenable number.

3549089561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549089561 is an equidigital number, since it uses as much as digits as its factorization.

3549089561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 3549089561 is about 59574.2357147786. The cubic root of 3549089561 is about 1525.3598808100.

The spelling of 3549089561 in words is "three billion, five hundred forty-nine million, eighty-nine thousand, five hundred sixty-one".