25255566250 has 80 divisors (see below), whose sum is σ = 49169935584. Its totient is φ = 9718632000.

The previous prime is 25255566209. The next prime is 25255566283. The reversal of 25255566250 is 5266555252.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 25255566197 and 25255566206.

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 39 ways as a sum of consecutive naturals, for example, 3597744 + ... + 3604756.

Almost surely, 2^25255566250 is an apocalyptic number.

25255566250 is a deficient number, since it is larger than the sum of its proper divisors (23914369334).

25255566250 is an equidigital number, since it uses as much as digits as its factorization.

25255566250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145 (or 7130 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 25255566250 in words is "twenty-five billion, two hundred fifty-five million, five hundred sixty-six thousand, two hundred fifty".