12520115500 has 48 divisors (see below), whose sum is σ = 28082998944. Its totient is φ = 4872686400.

The previous prime is 12520115479. The next prime is 12520115519. The reversal of 12520115500 is 551102521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319882 + ... + 356881.

It is an arithmetic number, because the mean of its divisors is an integer number (585062478).

Almost surely, 2^12520115500 is an apocalyptic number.

12520115500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520115500 is an abundant number, since it is smaller than the sum of its proper divisors (15562883444).

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

12520115500 is a wasteful number, since it uses less digits than its factorization.

12520115500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676819 (or 676807 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The spelling of 12520115500 in words is "twelve billion, five hundred twenty million, one hundred fifteen thousand, five hundred".