20259072678325 has 18 divisors (see below), whose sum is σ = 27053762334242. Its totient is φ = 14960486056800.

The previous prime is 20259072678289. The next prime is 20259072678329. The reversal of 20259072678325 is 52387627095202.

It can be written as a sum of positive squares in 3 ways, for example, as 62335608241 + 20196737070084 = 249671^2 + 4494078^2 .

It is not a de Polignac number, because 20259072678325 - 2¹¹ = 20259072676277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20259072678325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20259072678329) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 81018240 + ... + 81267910.

Almost surely, 2^{20259072678325} is an apocalyptic number.

20259072678325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20259072678325 is a deficient number, since it is larger than the sum of its proper divisors (6794689655917).

20259072678325 is an frugal number, since it uses more digits than its factorization.

20259072678325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499365 (or 249689 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 20259072678325 in words is "twenty trillion, two hundred fifty-nine billion, seventy-two million, six hundred seventy-eight thousand, three hundred twenty-five".