12563426 has 8 divisors (see below), whose sum is σ = 18878400. Its totient is φ = 6270628.

The previous prime is 12563417. The next prime is 12563437. The reversal of 12563426 is 62436521.

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

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, 4046 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (2359800).

Almost surely, 2^12563426 is an apocalyptic number.

12563426 is a deficient number, since it is larger than the sum of its proper divisors (6314974).

12563426 is a wasteful number, since it uses less digits than its factorization.

12563426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088.

The product of its digits is 8640, while the sum is 29.

The square root of 12563426 is about 3544.4923472904. The cubic root of 12563426 is about 232.4713095210.

Adding to 12563426 its reverse (62436521), we get a palindrome (74999947).

The spelling of 12563426 in words is "twelve million, five hundred sixty-three thousand, four hundred twenty-six".