12555452133 has 18 divisors (see below), whose sum is σ = 21096576774. Its totient is φ = 7174543824.

The previous prime is 12555452101. The next prime is 12555452167. The reversal of 12555452133 is 33125455521.

12555452133 is a `hidden beast` number, since 1 + 2 + 55 + 54 + 521 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11984337729 + 571114404 = 109473^2 + 23898^2 .

It is not a de Polignac number, because 12555452133 - 2⁵ = 12555452101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555452333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14234766 + ... + 14235647.

It is an arithmetic number, because the mean of its divisors is an integer number (1172032043).

Almost surely, 2^12555452133 is an apocalyptic number.

It is an amenable number.

12555452133 is a deficient number, since it is larger than the sum of its proper divisors (8541124641).

12555452133 is a wasteful number, since it uses less digits than its factorization.

12555452133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28470433 (or 28470423 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 12555452133 in words is "twelve billion, five hundred fifty-five million, four hundred fifty-two thousand, one hundred thirty-three".