12565411 has 4 divisors (see below), whose sum is σ = 12680800. Its totient is φ = 12450024.

The previous prime is 12565409. The next prime is 12565433. The reversal of 12565411 is 11456521.

It is a happy number.

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 12565411 - 2¹ = 12565409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12565471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57531 + ... + 57748.

It is an arithmetic number, because the mean of its divisors is an integer number (3170200).

Almost surely, 2^12565411 is an apocalyptic number.

12565411 is a deficient number, since it is larger than the sum of its proper divisors (115389).

12565411 is a wasteful number, since it uses less digits than its factorization.

12565411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115388.

The product of its digits is 1200, while the sum is 25.

The square root of 12565411 is about 3544.7723481205. The cubic root of 12565411 is about 232.4835522338.

It can be divided in two parts, 125 and 65411, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 12565411 in words is "twelve million, five hundred sixty-five thousand, four hundred eleven".