12552249825 has 18 divisors (see below), whose sum is σ = 22482474534. Its totient is φ = 6694533120.

The previous prime is 12552249811. The next prime is 12552249833. The reversal of 12552249825 is 52894225521.

12552249825 is a `hidden beast` number, since 1 + 2 + 5 + 522 + 49 + 82 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1549918161 + 11002331664 = 39369^2 + 104892^2 .

It is not a de Polignac number, because 12552249825 - 2¹⁰ = 12552248801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27893664 + ... + 27894113.

It is an arithmetic number, because the mean of its divisors is an integer number (1249026363).

Almost surely, 2^12552249825 is an apocalyptic number.

12552249825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12552249825 is a deficient number, since it is larger than the sum of its proper divisors (9930224709).

12552249825 is a wasteful number, since it uses less digits than its factorization.

12552249825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55787793 (or 55787785 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The spelling of 12552249825 in words is "twelve billion, five hundred fifty-two million, two hundred forty-nine thousand, eight hundred twenty-five".