12551426 has 8 divisors (see below), whose sum is σ = 19054224. Its totient is φ = 6200020.

The previous prime is 12551417. The next prime is 12551437. The reversal of 12551426 is 62415521.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12551395 and 12551404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37640 + ... + 37971.

It is an arithmetic number, because the mean of its divisors is an integer number (2381778).

Almost surely, 2^12551426 is an apocalyptic number.

12551426 is a deficient number, since it is larger than the sum of its proper divisors (6502798).

12551426 is an equidigital number, since it uses as much as digits as its factorization.

12551426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75696.

The product of its digits is 2400, while the sum is 26.

The square root of 12551426 is about 3542.7991757931. The cubic root of 12551426 is about 232.3972706835.

Adding to 12551426 its reverse (62415521), we get a palindrome (74966947).

The spelling of 12551426 in words is "twelve million, five hundred fifty-one thousand, four hundred twenty-six".