12555313552 has 20 divisors (see below), whose sum is σ = 25756857036. Its totient is φ = 5908382720.

The previous prime is 12555313429. The next prime is 12555313559. The reversal of 12555313552 is 25531355521.

It can be written as a sum of positive squares in 2 ways, for example, as 8555510016 + 3999803536 = 92496^2 + 63244^2 .

It is not an unprimeable number, because it can be changed into a prime (12555313559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23079349 + ... + 23079892.

Almost surely, 2^12555313552 is an apocalyptic number.

It is an amenable number.

12555313552 is an abundant number, since it is smaller than the sum of its proper divisors (13201543484).

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

12555313552 is a wasteful number, since it uses less digits than its factorization.

12555313552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46159266 (or 46159260 counting only the distinct ones).

The product of its digits is 112500, while the sum is 37.

The spelling of 12555313552 in words is "twelve billion, five hundred fifty-five million, three hundred thirteen thousand, five hundred fifty-two".