12551486 has 4 divisors (see below), whose sum is σ = 18827232. Its totient is φ = 6275742.

The previous prime is 12551479. The next prime is 12551501. The reversal of 12551486 is 68415521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3137870 + ... + 3137873.

It is an arithmetic number, because the mean of its divisors is an integer number (4706808).

Almost surely, 2^12551486 is an apocalyptic number.

12551486 is a deficient number, since it is larger than the sum of its proper divisors (6275746).

12551486 is an equidigital number, since it uses as much as digits as its factorization.

12551486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275745.

The product of its digits is 9600, while the sum is 32.

The square root of 12551486 is about 3542.8076436634. The cubic root of 12551486 is about 232.3976409950.

The spelling of 12551486 in words is "twelve million, five hundred fifty-one thousand, four hundred eighty-six".