12256550 has 12 divisors (see below), whose sum is σ = 22797276. Its totient is φ = 4902600.

The previous prime is 12256549. The next prime is 12256553. The reversal of 12256550 is 5565221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256553) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 122516 + ... + 122615.

It is an arithmetic number, because the mean of its divisors is an integer number (1899773).

Almost surely, 2^12256550 is an apocalyptic number.

12256550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12256550 is a deficient number, since it is larger than the sum of its proper divisors (10540726).

12256550 is a wasteful number, since it uses less digits than its factorization.

12256550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245143 (or 245138 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 12256550 is about 3500.9355892390. The cubic root of 12256550 is about 230.5628934832.

The spelling of 12256550 in words is "twelve million, two hundred fifty-six thousand, five hundred fifty".