12565027 has 4 divisors (see below), whose sum is σ = 12832416. Its totient is φ = 12297640.

The previous prime is 12565019. The next prime is 12565039. The reversal of 12565027 is 72056521.

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 12565027 - 2³ = 12565019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12564986 and 12565004.

It is not an unprimeable number, because it can be changed into a prime (12565067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133624 + ... + 133717.

It is an arithmetic number, because the mean of its divisors is an integer number (3208104).

Almost surely, 2^12565027 is an apocalyptic number.

12565027 is a deficient number, since it is larger than the sum of its proper divisors (267389).

12565027 is an equidigital number, since it uses as much as digits as its factorization.

12565027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267388.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 12565027 is about 3544.7181834386. The cubic root of 12565027 is about 232.4811839708.

The spelling of 12565027 in words is "twelve million, five hundred sixty-five thousand, twenty-seven".