12636550 has 12 divisors (see below), whose sum is σ = 23504076. Its totient is φ = 5054600.

The previous prime is 12636529. The next prime is 12636551. The reversal of 12636550 is 5563621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126316 + ... + 126415.

It is an arithmetic number, because the mean of its divisors is an integer number (1958673).

Almost surely, 2^12636550 is an apocalyptic number.

12636550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12636550 is a deficient number, since it is larger than the sum of its proper divisors (10867526).

12636550 is a wasteful number, since it uses less digits than its factorization.

12636550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252743 (or 252738 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 12636550 is about 3554.7925396569. The cubic root of 12636550 is about 232.9214616150.

The spelling of 12636550 in words is "twelve million, six hundred thirty-six thousand, five hundred fifty".