12547052224 has 112 divisors (see below), whose sum is σ = 29220932160. Its totient is φ = 5233213440.

The previous prime is 12547052197. The next prime is 12547052227. The reversal of 12547052224 is 42225074521.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-4 number, since 4×12547052224⁴ (a number of 41 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12547052224.

It is not an unprimeable number, because it can be changed into a prime (12547052227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12434632 + ... + 12435640.

It is an arithmetic number, because the mean of its divisors is an integer number (260901180).

Almost surely, 2^12547052224 is an apocalyptic number.

12547052224 is a gapful number since it is divisible by the number (14) 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 12547052224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14610466080).

12547052224 is an abundant number, since it is smaller than the sum of its proper divisors (16673879936).

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

12547052224 is a wasteful number, since it uses less digits than its factorization.

12547052224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 34.

The spelling of 12547052224 in words is "twelve billion, five hundred forty-seven million, fifty-two thousand, two hundred twenty-four".