32985561 has 16 divisors (see below), whose sum is σ = 50954624. Its totient is φ = 18589824.

The previous prime is 32985527. The next prime is 32985569. The reversal of 32985561 is 16558923.

It is not a de Polignac number, because 32985561 - 2¹⁰ = 32984537 is a prime.

Its product of digits (64800) is a multiple of the sum of its prime divisors (21600).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32985569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9226 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (3184664).

Almost surely, 2^32985561 is an apocalyptic number.

It is an amenable number.

32985561 is a deficient number, since it is larger than the sum of its proper divisors (17969063).

32985561 is a wasteful number, since it uses less digits than its factorization.

32985561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21600.

The product of its digits is 64800, while the sum is 39.

The square root of 32985561 is about 5743.3057553991. The cubic root of 32985561 is about 320.7066447727.

The spelling of 32985561 in words is "thirty-two million, nine hundred eighty-five thousand, five hundred sixty-one".