12585515 has 4 divisors (see below), whose sum is σ = 15102624. Its totient is φ = 10068408.

The previous prime is 12585499. The next prime is 12585523. The reversal of 12585515 is 51558521.

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

It is a cyclic number.

It is not a de Polignac number, because 12585515 - 2⁴ = 12585499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258547 + ... + 1258556.

It is an arithmetic number, because the mean of its divisors is an integer number (3775656).

Almost surely, 2^12585515 is an apocalyptic number.

12585515 is a deficient number, since it is larger than the sum of its proper divisors (2517109).

12585515 is an equidigital number, since it uses as much as digits as its factorization.

12585515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517108.

The product of its digits is 10000, while the sum is 32.

The square root of 12585515 is about 3547.6069398962. The cubic root of 12585515 is about 232.6074733404.

The spelling of 12585515 in words is "twelve million, five hundred eighty-five thousand, five hundred fifteen".