25990172752 has 20 divisors (see below), whose sum is σ = 50358585376. Its totient is φ = 12994408800.

The previous prime is 25990172729. The next prime is 25990172783. The reversal of 25990172752 is 25727109952.

It is a junction number, because it is equal to n+sod(n) for n = 25990172696 and 25990172705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441877 + ... + 497227.

Almost surely, 2^25990172752 is an apocalyptic number.

It is an amenable number.

25990172752 is a deficient number, since it is larger than the sum of its proper divisors (24368412624).

25990172752 is a wasteful number, since it uses less digits than its factorization.

25990172752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84706 (or 84700 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 49.

It can be divided in two parts, 2599017 and 2752, that added together give a square (2601769 = 1613²).

The spelling of 25990172752 in words is "twenty-five billion, nine hundred ninety million, one hundred seventy-two thousand, seven hundred fifty-two".