12500000520000 has 280 divisors, whose sum is σ = 47231909900736. Its totient is φ = 2857142784000.

The previous prime is 12500000519989. The next prime is 12500000520013. The reversal of 12500000520000 is 2500000521.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6600477 + ... + 8280476.

Almost surely, 2^{12500000520000} is an apocalyptic number.

12500000520000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500000520000 is an abundant number, since it is smaller than the sum of its proper divisors (34731909380736).

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

12500000520000 is an equidigital number, since it uses as much as digits as its factorization.

12500000520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880995 (or 14880970 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

Adding to 12500000520000 its reverse (2500000521), we get a palindrome (12502500520521).

The spelling of 12500000520000 in words is "twelve trillion, five hundred billion, five hundred twenty thousand".