12505543352 has 32 divisors (see below), whose sum is σ = 23513742720. Its totient is φ = 6235242720.

The previous prime is 12505543339. The next prime is 12505543363. The reversal of 12505543352 is 25334550521.

It is a super-2 number, since 2×12505543352² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5867327 + ... + 5869457.

It is an arithmetic number, because the mean of its divisors is an integer number (734804460).

Almost surely, 2^12505543352 is an apocalyptic number.

It is an amenable number.

12505543352 is a deficient number, since it is larger than the sum of its proper divisors (11008199368).

12505543352 is a wasteful number, since it uses less digits than its factorization.

12505543352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 12505543352 in words is "twelve billion, five hundred five million, five hundred forty-three thousand, three hundred fifty-two".