2546609 has 4 divisors (see below), whose sum is σ = 2742516. Its totient is φ = 2350704.

The previous prime is 2546581. The next prime is 2546611. The reversal of 2546609 is 9066452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 908209 = 1280^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2546609 - 2¹² = 2542513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2546659) 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, 97934 + ... + 97959.

It is an arithmetic number, because the mean of its divisors is an integer number (685629).

2^2546609 is an apocalyptic number.

It is an amenable number.

2546609 is a deficient number, since it is larger than the sum of its proper divisors (195907).

2546609 is a wasteful number, since it uses less digits than its factorization.

2546609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195906.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2546609 is about 1595.8098257625. The cubic root of 2546609 is about 136.5591347941.

The spelling of 2546609 in words is "two million, five hundred forty-six thousand, six hundred nine".