2505863128625 has 16 divisors (see below), whose sum is σ = 3127370373504. Its totient is φ = 2004656407600.

The previous prime is 2505863128591. The next prime is 2505863128627. The reversal of 2505863128625 is 5268213685052.

It is not a de Polignac number, because 2505863128625 - 2⁸ = 2505863128369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505863128627) 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 15 ways as a sum of consecutive naturals, for example, 9308162 + ... + 9573588.

It is an arithmetic number, because the mean of its divisors is an integer number (195460648344).

Almost surely, 2^{2505863128625} is an apocalyptic number.

2505863128625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2505863128625 is a deficient number, since it is larger than the sum of its proper divisors (621507244879).

2505863128625 is an equidigital number, since it uses as much as digits as its factorization.

2505863128625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340969 (or 340959 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 2505863128625 in words is "two trillion, five hundred five billion, eight hundred sixty-three million, one hundred twenty-eight thousand, six hundred twenty-five".