25252555250 has 32 divisors (see below), whose sum is σ = 50909157936. Its totient is φ = 9324019200.

The previous prime is 25252555231. The next prime is 25252555291. The reversal of 25252555250 is 5255525252.

It can be written as a sum of positive squares in 8 ways, for example, as 1514065921 + 23738489329 = 38911^2 + 154073^2 .

It is an unprimeable number.

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, 3881759 + ... + 3888258.

Almost surely, 2^25252555250 is an apocalyptic number.

25252555250 is an abundant number, since it is smaller than the sum of its proper divisors (25656602686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25252555250 is a wasteful number, since it uses less digits than its factorization.

25252555250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770047 (or 7770037 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 38.

The spelling of 25252555250 in words is "twenty-five billion, two hundred fifty-two million, five hundred fifty-five thousand, two hundred fifty".