35564561 has 16 divisors (see below), whose sum is σ = 40060800. Its totient is φ = 31373568.

The previous prime is 35564519. The next prime is 35564563. The reversal of 35564561 is 16546553.

It is a de Polignac number, because none of the positive numbers 2^k-35564561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35564563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32735 + ... + 33803.

It is an arithmetic number, because the mean of its divisors is an integer number (2503800).

Almost surely, 2^35564561 is an apocalyptic number.

It is an amenable number.

35564561 is a deficient number, since it is larger than the sum of its proper divisors (4496239).

35564561 is a wasteful number, since it uses less digits than its factorization.

35564561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its digits is 54000, while the sum is 35.

The square root of 35564561 is about 5963.6030216640. The cubic root of 35564561 is about 328.8560359037.

The spelling of 35564561 in words is "thirty-five million, five hundred sixty-four thousand, five hundred sixty-one".