12550609 has 4 divisors (see below), whose sum is σ = 12566016. Its totient is φ = 12535204.

The previous prime is 12550589. The next prime is 12550613. The reversal of 12550609 is 90605521.

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 12550609 - 2⁷ = 12550481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12550619) 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, 6409 + ... + 8134.

It is an arithmetic number, because the mean of its divisors is an integer number (3141504).

Almost surely, 2^12550609 is an apocalyptic number.

It is an amenable number.

12550609 is a deficient number, since it is larger than the sum of its proper divisors (15407).

12550609 is an equidigital number, since it uses as much as digits as its factorization.

12550609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 12550609 is about 3542.6838696107. The cubic root of 12550609 is about 232.3922281571.

The spelling of 12550609 in words is "twelve million, five hundred fifty thousand, six hundred nine".