2055609 has 12 divisors (see below), whose sum is σ = 3049956. Its totient is φ = 1333152.

The previous prime is 2055569. The next prime is 2055611. The reversal of 2055609 is 9065502.

2055609 is a `hidden beast` number, since 2 + 0 + 55 + 609 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 783225 + 1272384 = 885^2 + 1128^2 .

It is not a de Polignac number, because 2055609 - 2⁷ = 2055481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2055649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2754 + ... + 3419.

It is an arithmetic number, because the mean of its divisors is an integer number (254163).

2^2055609 is an apocalyptic number.

It is an amenable number.

2055609 is a deficient number, since it is larger than the sum of its proper divisors (994347).

2055609 is a wasteful number, since it uses less digits than its factorization.

2055609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216 (or 6213 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 2055609 is about 1433.7395160907. The cubic root of 2055609 is about 127.1491623712.

The spelling of 2055609 in words is "two million, fifty-five thousand, six hundred nine".