12565497 has 32 divisors (see below), whose sum is σ = 20275200. Its totient is φ = 6769728.

The previous prime is 12565493. The next prime is 12565513. The reversal of 12565497 is 79456521.

It is not a de Polignac number, because 12565497 - 2² = 12565493 is a prime.

Its product of digits (75600) is a multiple of the sum of its prime divisors (525).

It is not an unprimeable number, because it can be changed into a prime (12565493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28404 + ... + 28842.

It is an arithmetic number, because the mean of its divisors is an integer number (633600).

Almost surely, 2^12565497 is an apocalyptic number.

It is an amenable number.

12565497 is a deficient number, since it is larger than the sum of its proper divisors (7709703).

12565497 is a wasteful number, since it uses less digits than its factorization.

12565497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 75600, while the sum is 39.

The square root of 12565497 is about 3544.7844786390. The cubic root of 12565497 is about 232.4840826194.

It can be divided in two parts, 125654 and 97, that added together give a triangular number (125751 = T₅₀₁).

The spelling of 12565497 in words is "twelve million, five hundred sixty-five thousand, four hundred ninety-seven".