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12525200000 = 2755173181
BaseRepresentation
bin10111010101000111…
…10110001010000000
31012022220101002022022
423222203312022000
5201122422400000
65430510301012
7622246305035
oct135243661200
935286332268
1012525200000
115348170165
1225167b7768
131247c00b61
1486b69338c
154d4915585
hex2ea8f6280

12525200000 has 192 divisors, whose sum is σ = 31542278040. Its totient is φ = 4953600000.

The previous prime is 12525199993. The next prime is 12525200027. The reversal of 12525200000 is 252521.

It can be written as a sum of positive squares in 12 ways, for example, as 7038538816 + 5486661184 = 83896^2 + 74072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69199910 + ... + 69200090.

Almost surely, 212525200000 is an apocalyptic number.

12525200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12525200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15771139020).

12525200000 is an abundant number, since it is smaller than the sum of its proper divisors (19017078040).

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

12525200000 is an frugal number, since it uses more digits than its factorization.

12525200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

Adding to 12525200000 its reverse (252521), we get a palindrome (12525452521).

The spelling of 12525200000 in words is "twelve billion, five hundred twenty-five million, two hundred thousand".