12025973569 has 3 divisors (see below), whose sum is σ = 12026083233. Its totient is φ = 12025863906.

The previous prime is 12025973551. The next prime is 12025973593. The reversal of 12025973569 is 96537952021.

The square root of 12025973569 is 109663.

It is a perfect power (a square), and thus also a powerful number.

12025973569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96537952021 = 7 ⋅13791136003.

It is not a de Polignac number, because 12025973569 - 2⁵ = 12025973537 is a prime.

It is a super-2 number, since 2×12025973569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12025970569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54832 + ... + 164494.

It is an arithmetic number, because the mean of its divisors is an integer number (4008694411).

Almost surely, 2^12025973569 is an apocalyptic number.

12025973569 is the 109663-rd square number.

12025973569 is the 54832-nd centered octagonal number.

It is an amenable number.

12025973569 is a deficient number, since it is larger than the sum of its proper divisors (109664).

12025973569 is an frugal number, since it uses more digits than its factorization.

12025973569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219326 (or 109663 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 49.

Multiplying 12025973569 by its sum of digits (49), we get a square (589272704881 = 767641²).

The spelling of 12025973569 in words is "twelve billion, twenty-five million, nine hundred seventy-three thousand, five hundred sixty-nine".