12555253431 has 12 divisors (see below), whose sum is σ = 20726132752. Its totient is φ = 7174430496.

The previous prime is 12555253351. The next prime is 12555253439. The reversal of 12555253431 is 13435255521.

12555253431 is a `hidden beast` number, since 1 + 25 + 552 + 53 + 4 + 31 = 666.

It is not a de Polignac number, because 12555253431 - 2¹⁸ = 12554991287 is a prime.

It is a super-2 number, since 2×12555253431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555253439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99644806 + ... + 99644931.

Almost surely, 2^12555253431 is an apocalyptic number.

12555253431 is a deficient number, since it is larger than the sum of its proper divisors (8170879321).

12555253431 is a wasteful number, since it uses less digits than its factorization.

12555253431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199289750 (or 199289747 counting only the distinct ones).

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

The spelling of 12555253431 in words is "twelve billion, five hundred fifty-five million, two hundred fifty-three thousand, four hundred thirty-one".