12530256210 has 24 divisors (see below), whose sum is σ = 32578666380. Its totient is φ = 3341401632.

The previous prime is 12530256209. The next prime is 12530256217. The reversal of 12530256210 is 1265203521.

It is a happy number.

12530256210 is a `hidden beast` number, since 1 + 2 + 5 + 30 + 2 + 5 + 621 + 0 = 666.

12530256210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12362993721 + 167262489 = 111189^2 + 12933^2 .

It is not an unprimeable number, because it can be changed into a prime (12530256217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69612445 + ... + 69612624.

Almost surely, 2^12530256210 is an apocalyptic number.

12530256210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12530256210 is an abundant number, since it is smaller than the sum of its proper divisors (20048410170).

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

12530256210 is a wasteful number, since it uses less digits than its factorization.

12530256210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139225082 (or 139225079 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 12530256210 its reverse (1265203521), we get a palindrome (13795459731).

The spelling of 12530256210 in words is "twelve billion, five hundred thirty million, two hundred fifty-six thousand, two hundred ten".