12500052400 has 120 divisors (see below), whose sum is σ = 34688855664. Its totient is φ = 4278067200.

The previous prime is 12500052353. The next prime is 12500052401. The reversal of 12500052400 is 425000521.

12500052400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12500052401) 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 23 ways as a sum of consecutive naturals, for example, 8757 + ... + 158356.

Almost surely, 2^12500052400 is an apocalyptic number.

12500052400 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 12500052400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17344427832).

12500052400 is an abundant number, since it is smaller than the sum of its proper divisors (22188803264).

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

12500052400 is a wasteful number, since it uses less digits than its factorization.

12500052400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167159 (or 167148 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

Adding to 12500052400 its reverse (425000521), we get a palindrome (12925052921).

The spelling of 12500052400 in words is "twelve billion, five hundred million, fifty-two thousand, four hundred".