25803606075625 has 45 divisors (see below), whose sum is σ = 37509835314369. Its totient is φ = 17693291742000.

The previous prime is 25803606075619. The next prime is 25803606075649. The reversal of 25803606075625 is 52657060630852.

It is a happy number.

The square root of 25803606075625 is 5079725.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 2023002716329 + 23780603359296 = 1422323^2 + 4876536^2 .

It is not a de Polignac number, because 25803606075625 - 2¹³ = 25803606067433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 888937362 + ... + 888966388.

Almost surely, 2^{25803606075625} is an apocalyptic number.

25803606075625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25803606075625 is the 5079725-th square number.

25803606075625 is the 2539863-rd centered octagonal number.

It is an amenable number.

25803606075625 is a deficient number, since it is larger than the sum of its proper divisors (11706229238744).

25803606075625 is an frugal number, since it uses more digits than its factorization.

25803606075625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58088 (or 29039 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 25803606075625 in words is "twenty-five trillion, eight hundred three billion, six hundred six million, seventy-five thousand, six hundred twenty-five".