12858265225 has 24 divisors (see below), whose sum is σ = 17589546072. Its totient is φ = 9263731200.

The previous prime is 12858265223. The next prime is 12858265261. The reversal of 12858265225 is 52256285821.

It can be written as a sum of positive squares in 12 ways, for example, as 12427121529 + 431143696 = 111477^2 + 20764^2 .

It is not a de Polignac number, because 12858265225 - 2¹ = 12858265223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12858265223) 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 23 ways as a sum of consecutive naturals, for example, 469162 + ... + 495811.

It is an arithmetic number, because the mean of its divisors is an integer number (732897753).

Almost surely, 2^12858265225 is an apocalyptic number.

It is an amenable number.

12858265225 is a deficient number, since it is larger than the sum of its proper divisors (4731280847).

12858265225 is a wasteful number, since it uses less digits than its factorization.

12858265225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965037 (or 965032 counting only the distinct ones).

The product of its digits is 768000, while the sum is 46.

The spelling of 12858265225 in words is "twelve billion, eight hundred fifty-eight million, two hundred sixty-five thousand, two hundred twenty-five".