12555450 has 36 divisors (see below), whose sum is σ = 33733518. Its totient is φ = 3348000.

The previous prime is 12555443. The next prime is 12555451. The reversal of 12555450 is 5455521.

It can be written as a sum of positive squares in 3 ways, for example, as 11471769 + 1083681 = 3387^2 + 1041^2 .

It is not an unprimeable number, because it can be changed into a prime (12555451) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13501 + ... + 14400.

Almost surely, 2^12555450 is an apocalyptic number.

12555450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12555450 is an abundant number, since it is smaller than the sum of its proper divisors (21178068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12555450 is a wasteful number, since it uses less digits than its factorization.

12555450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27919 (or 27911 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 12555450 is about 3543.3670427998. The cubic root of 12555450 is about 232.4221036306.

The spelling of 12555450 in words is "twelve million, five hundred fifty-five thousand, four hundred fifty".