33561089 has 2 divisors, whose sum is σ = 33561090. Its totient is φ = 33561088.

The previous prime is 33561079. The next prime is 33561103. The reversal of 33561089 is 98016533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 94864 = 5785^2 + 308^2 .

It is an emirp because it is prime and its reverse (98016533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33561089 - 2⁸ = 33560833 is a prime.

It is a super-2 number, since 2×33561089² = 2252693389731842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33561019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16780544 + 16780545.

It is an arithmetic number, because the mean of its divisors is an integer number (16780545).

Almost surely, 2^33561089 is an apocalyptic number.

It is an amenable number.

33561089 is a deficient number, since it is larger than the sum of its proper divisors (1).

33561089 is an equidigital number, since it uses as much as digits as its factorization.

33561089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 33561089 is about 5793.1933335597. The cubic root of 33561089 is about 322.5611173554.

The spelling of 33561089 in words is "thirty-three million, five hundred sixty-one thousand, eighty-nine".