12525730830 has 96 divisors (see below), whose sum is σ = 33532507008. Its totient is φ = 3241996800.

The previous prime is 12525730813. The next prime is 12525730843. The reversal of 12525730830 is 3803752521.

It is a happy number.

12525730830 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 573 + 0 + 83 + 0 = 666.

It is a super-2 number, since 2×12525730830² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 718315 + ... + 735545.

It is an arithmetic number, because the mean of its divisors is an integer number (349296948).

Almost surely, 2^12525730830 is an apocalyptic number.

12525730830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12525730830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16766253504).

12525730830 is an abundant number, since it is smaller than the sum of its proper divisors (21006776178).

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

12525730830 is a wasteful number, since it uses less digits than its factorization.

12525730830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17482 (or 17479 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 12525730830 in words is "twelve billion, five hundred twenty-five million, seven hundred thirty thousand, eight hundred thirty".