12648550 has 12 divisors (see below), whose sum is σ = 23526396. Its totient is φ = 5059400.

The previous prime is 12648539. The next prime is 12648569. The reversal of 12648550 is 5584621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126436 + ... + 126535.

It is an arithmetic number, because the mean of its divisors is an integer number (1960533).

Almost surely, 2^12648550 is an apocalyptic number.

12648550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12648550 is a deficient number, since it is larger than the sum of its proper divisors (10877846).

12648550 is a wasteful number, since it uses less digits than its factorization.

12648550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252983 (or 252978 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 12648550 is about 3556.4800013496. The cubic root of 12648550 is about 232.9951677361.

The spelling of 12648550 in words is "twelve million, six hundred forty-eight thousand, five hundred fifty".