12551456 has 12 divisors (see below), whose sum is σ = 24710742. Its totient is φ = 6275712.

The previous prime is 12551447. The next prime is 12551479. The reversal of 12551456 is 65415521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8880400 + 3671056 = 2980^2 + 1916^2 .

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 as a sum of consecutive naturals, namely, 196085 + ... + 196148.

Almost surely, 2^12551456 is an apocalyptic number.

12551456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12551456 is a deficient number, since it is larger than the sum of its proper divisors (12159286).

12551456 is an equidigital number, since it uses as much as digits as its factorization.

12551456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392243 (or 392235 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 12551456 is about 3542.8034097308. The cubic root of 12551456 is about 232.3974558394.

Adding to 12551456 its reverse (65415521), we get a palindrome (77966977).

The spelling of 12551456 in words is "twelve million, five hundred fifty-one thousand, four hundred fifty-six".