9089005561 has 8 divisors (see below), whose sum is σ = 9146410560. Its totient is φ = 9031636368.

The previous prime is 9089005517. The next prime is 9089005567. The reversal of 9089005561 is 1655009809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9089005561 - 2²¹ = 9086908409 is a prime.

It is a super-2 number, since 2×9089005561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9089005567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652255 + ... + 666043.

It is an arithmetic number, because the mean of its divisors is an integer number (1143301320).

Almost surely, 2^9089005561 is an apocalyptic number.

It is an amenable number.

9089005561 is a deficient number, since it is larger than the sum of its proper divisors (57404999).

9089005561 is a wasteful number, since it uses less digits than its factorization.

9089005561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17903.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 9089005561 is about 95336.2762069088. The cubic root of 9089005561 is about 2086.9183433327.

The spelling of 9089005561 in words is "nine billion, eighty-nine million, five thousand, five hundred sixty-one".