25525388050 has 24 divisors (see below), whose sum is σ = 48127601556. Its totient is φ = 10070288640.

The previous prime is 25525388041. The next prime is 25525388071. The reversal of 25525388050 is 5088352552.

It can be written as a sum of positive squares in 6 ways, for example, as 3405072609 + 22120315441 = 58353^2 + 148729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25525387988 and 25525388006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3492979 + ... + 3500278.

Almost surely, 2^25525388050 is an apocalyptic number.

25525388050 is a deficient number, since it is larger than the sum of its proper divisors (22602213506).

25525388050 is a wasteful number, since it uses less digits than its factorization.

25525388050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993342 (or 6993337 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 25525388050 in words is "twenty-five billion, five hundred twenty-five million, three hundred eighty-eight thousand, fifty".