12551696 has 10 divisors (see below), whose sum is σ = 24318942. Its totient is φ = 6275840.

The previous prime is 12551689. The next prime is 12551711. The reversal of 12551696 is 69615521.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 48400 = 3536^2 + 220^2 .

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, 392225 + ... + 392256.

Almost surely, 2^12551696 is an apocalyptic number.

12551696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12551696 is a deficient number, since it is larger than the sum of its proper divisors (11767246).

12551696 is an equidigital number, since it uses as much as digits as its factorization.

12551696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784489 (or 784483 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 12551696 is about 3542.8372810503. The cubic root of 12551696 is about 232.3989370761.

The spelling of 12551696 in words is "twelve million, five hundred fifty-one thousand, six hundred ninety-six".