25530525250 has 32 divisors (see below), whose sum is σ = 48019750272. Its totient is φ = 10163790000.

The previous prime is 25530525233. The next prime is 25530525257. The reversal of 25530525250 is 5252503552.

It is not an unprimeable number, because it can be changed into a prime (25530525257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189246 + ... + 294745.

It is an arithmetic number, because the mean of its divisors is an integer number (1500617196).

Almost surely, 2^25530525250 is an apocalyptic number.

25530525250 is a deficient number, since it is larger than the sum of its proper divisors (22489225022).

25530525250 is a wasteful number, since it uses less digits than its factorization.

25530525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484219 (or 484209 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 25530525250 in words is "twenty-five billion, five hundred thirty million, five hundred twenty-five thousand, two hundred fifty".