25500005502525 has 18 divisors (see below), whose sum is σ = 45673343189370. Its totient is φ = 13600002934560.

The previous prime is 25500005502463. The next prime is 25500005502557. The reversal of 25500005502525 is 52520550000552.

25500005502525 is a `hidden beast` number, since 2 + 5 + 50 + 0 + 0 + 0 + 550 + 2 + 52 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2090994084729 + 23409011417796 = 1446027^2 + 4838286^2 .

It is not a de Polignac number, because 25500005502525 - 2³⁴ = 25482825633341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25500005502525.

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 17 ways as a sum of consecutive naturals, for example, 56666678670 + ... + 56666679119.

It is an arithmetic number, because the mean of its divisors is an integer number (2537407954965).

Almost surely, 2^{25500005502525} is an apocalyptic number.

25500005502525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25500005502525 is a deficient number, since it is larger than the sum of its proper divisors (20173337686845).

25500005502525 is a wasteful number, since it uses less digits than its factorization.

25500005502525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113333357805 (or 113333357797 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 25500005502525 in words is "twenty-five trillion, five hundred billion, five million, five hundred two thousand, five hundred twenty-five".