32561965 has 8 divisors (see below), whose sum is σ = 39983328. Its totient is φ = 25443600.

The previous prime is 32561939. The next prime is 32561989. The reversal of 32561965 is 56916523.

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

It is not a de Polignac number, because 32561965 - 2⁹ = 32561453 is a prime.

It is a super-2 number, since 2×32561965² = 2120563129322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75511 + ... + 75940.

It is an arithmetic number, because the mean of its divisors is an integer number (4997916).

Almost surely, 2^32561965 is an apocalyptic number.

It is an amenable number.

32561965 is a deficient number, since it is larger than the sum of its proper divisors (7421363).

32561965 is a wasteful number, since it uses less digits than its factorization.

32561965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151499.

The product of its digits is 48600, while the sum is 37.

The square root of 32561965 is about 5706.3092275130. The cubic root of 32561965 is about 319.3279025299.

The spelling of 32561965 in words is "thirty-two million, five hundred sixty-one thousand, nine hundred sixty-five".