25255005500525 has 6 divisors (see below), whose sum is σ = 31316206820682. Its totient is φ = 20204004400400.

The previous prime is 25255005500503. The next prime is 25255005500537. The reversal of 25255005500525 is 52500550055252.

It can be written as a sum of positive squares in 3 ways, for example, as 325226121796 + 24929779378729 = 570286^2 + 4992973^2 .

It is not a de Polignac number, because 25255005500525 - 2⁴⁴ = 7662819456109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505100109986 + ... + 505100110035.

It is an arithmetic number, because the mean of its divisors is an integer number (5219367803447).

Almost surely, 2^{25255005500525} is an apocalyptic number.

25255005500525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25255005500525 is a deficient number, since it is larger than the sum of its proper divisors (6061201320157).

25255005500525 is a wasteful number, since it uses less digits than its factorization.

25255005500525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010200220031 (or 1010200220026 counting only the distinct ones).

The product of its (nonzero) digits is 625000, while the sum is 41.

Adding to 25255005500525 its reverse (52500550055252), we get a palindrome (77755555555777).

The spelling of 25255005500525 in words is "twenty-five trillion, two hundred fifty-five billion, five million, five hundred thousand, five hundred twenty-five".