12800025 has 108 divisors (see below), whose sum is σ = 28300272. Its totient is φ = 5715360.

The previous prime is 12800017. The next prime is 12800041. The reversal of 12800025 is 52000821.

It is not a de Polignac number, because 12800025 - 2³ = 12800017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12799980 and 12800007.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 297654 + ... + 297696.

Almost surely, 2^12800025 is an apocalyptic number.

12800025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12800025 is an abundant number, since it is smaller than the sum of its proper divisors (15500247).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12800025 is an equidigital number, since it uses as much as digits as its factorization.

12800025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 12800025 is about 3577.7122578542. The cubic root of 12800025 is about 233.9215713495.

Adding to 12800025 its reverse (52000821), we get a palindrome (64800846).

It can be divided in two parts, 128000 and 25, that multiplied together give a 5-th power (3200000 = 20⁵).

The spelling of 12800025 in words is "twelve million, eight hundred thousand, twenty-five".