25255503002500 has 30 divisors (see below), whose sum is σ = 55228733971334. Its totient is φ = 10102201200000.

The previous prime is 25255503002479. The next prime is 25255503002519. The reversal of 25255503002500 is 520030555252.

It can be written as a sum of positive squares in 5 ways, for example, as 10142084792896 + 15113418209604 = 3184664^2 + 3887598^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5051098101 + ... + 5051103100.

Almost surely, 2^{25255503002500} is an apocalyptic number.

25255503002500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25255503002500 is an abundant number, since it is smaller than the sum of its proper divisors (29973230968834).

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

25255503002500 is a wasteful number, since it uses less digits than its factorization.

25255503002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102201225 (or 10102201208 counting only the distinct ones).

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

Adding to 25255503002500 its reverse (520030555252), we get a palindrome (25775533557752).

The spelling of 25255503002500 in words is "twenty-five trillion, two hundred fifty-five billion, five hundred three million, two thousand, five hundred".