25250025252500 has 60 divisors (see below), whose sum is σ = 58122900343200. Its totient is φ = 9568430604000.

The previous prime is 25250025252457. The next prime is 25250025252503. The reversal of 25250025252500 is 525252005252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250025252503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 265742240 + ... + 265837239.

It is an arithmetic number, because the mean of its divisors is an integer number (968715005720).

Almost surely, 2^{25250025252500} is an apocalyptic number.

25250025252500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25250025252500 is an abundant number, since it is smaller than the sum of its proper divisors (32872875090700).

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

25250025252500 is a wasteful number, since it uses less digits than its factorization.

25250025252500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531579522 (or 531579505 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

Adding to 25250025252500 its reverse (525252005252), we get a palindrome (25775277257752).

The spelling of 25250025252500 in words is "twenty-five trillion, two hundred fifty billion, twenty-five million, two hundred fifty-two thousand, five hundred".