2035561 has 4 divisors (see below), whose sum is σ = 2220624. Its totient is φ = 1850500.

The previous prime is 2035549. The next prime is 2035567. The reversal of 2035561 is 1655302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2035561 - 2⁷ = 2035433 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2035567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92515 + ... + 92536.

It is an arithmetic number, because the mean of its divisors is an integer number (555156).

2^2035561 is an apocalyptic number.

It is an amenable number.

2035561 is a deficient number, since it is larger than the sum of its proper divisors (185063).

2035561 is a wasteful number, since it uses less digits than its factorization.

2035561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185062.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2035561 is about 1426.7308786173. The cubic root of 2035561 is about 126.7344566343.

The spelling of 2035561 in words is "two million, thirty-five thousand, five hundred sixty-one".