12555589 has 8 divisors (see below), whose sum is σ = 13001472. Its totient is φ = 12112320.

The previous prime is 12555581. The next prime is 12555593. The reversal of 12555589 is 98555521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12555589 - 2³ = 12555581 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555581) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18042 + ... + 18724.

It is an arithmetic number, because the mean of its divisors is an integer number (1625184).

Almost surely, 2^12555589 is an apocalyptic number.

It is an amenable number.

12555589 is a deficient number, since it is larger than the sum of its proper divisors (445883).

12555589 is an equidigital number, since it uses as much as digits as its factorization.

12555589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307.

The product of its digits is 90000, while the sum is 40.

The square root of 12555589 is about 3543.3866568581. The cubic root of 12555589 is about 232.4229613340.

The spelling of 12555589 in words is "twelve million, five hundred fifty-five thousand, five hundred eighty-nine".