12565005 has 8 divisors (see below), whose sum is σ = 20104032. Its totient is φ = 6701328.

The previous prime is 12564977. The next prime is 12565009. The reversal of 12565005 is 50056521.

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

It is not a de Polignac number, because 12565005 - 2⁵ = 12564973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418819 + ... + 418848.

It is an arithmetic number, because the mean of its divisors is an integer number (2513004).

Almost surely, 2^12565005 is an apocalyptic number.

12565005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12565005 is a deficient number, since it is larger than the sum of its proper divisors (7539027).

12565005 is an equidigital number, since it uses as much as digits as its factorization.

12565005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837675.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 12565005 is about 3544.7150802286. The cubic root of 12565005 is about 232.4810482876.

The spelling of 12565005 in words is "twelve million, five hundred sixty-five thousand, five".