12555503504 has 10 divisors (see below), whose sum is σ = 24326288070. Its totient is φ = 6277751744.

The previous prime is 12555503503. The next prime is 12555503539. The reversal of 12555503504 is 40530555521.

It can be written as a sum of positive squares in only one way, i.e., 12155503504 + 400000000 = 110252^2 + 20000^2 .

It is not an unprimeable number, because it can be changed into a prime (12555503503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392359469 + ... + 392359500.

It is an arithmetic number, because the mean of its divisors is an integer number (2432628807).

Almost surely, 2^12555503504 is an apocalyptic number.

It is an amenable number.

12555503504 is a deficient number, since it is larger than the sum of its proper divisors (11770784566).

12555503504 is an equidigital number, since it uses as much as digits as its factorization.

12555503504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784718977 (or 784718971 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 12555503504 in words is "twelve billion, five hundred fifty-five million, five hundred three thousand, five hundred four".