12555052587 has 72 divisors (see below), whose sum is σ = 23048064000. Its totient is φ = 6512375520.

The previous prime is 12555052567. The next prime is 12555052589. The reversal of 12555052587 is 78525055521.

12555052587 is a `hidden beast` number, since 12 + 5 + 5 + 5 + 0 + 52 + 587 = 666.

It is not a de Polignac number, because 12555052587 - 2¹² = 12555048491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12555052589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4184914 + ... + 4187912.

It is an arithmetic number, because the mean of its divisors is an integer number (320112000).

Almost surely, 2^12555052587 is an apocalyptic number.

12555052587 is a deficient number, since it is larger than the sum of its proper divisors (10493011413).

12555052587 is a wasteful number, since it uses less digits than its factorization.

12555052587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 45.

The spelling of 12555052587 in words is "twelve billion, five hundred fifty-five million, fifty-two thousand, five hundred eighty-seven".