25025555052500 has 30 divisors (see below), whose sum is σ = 54725883794274. Its totient is φ = 10010222020000.

The previous prime is 25025555052481. The next prime is 25025555052539. The reversal of 25025555052500 is 525055552052.

It can be written as a sum of positive squares in 5 ways, for example, as 6345300544144 + 18680254508356 = 2518988^2 + 4322066^2 .

It is a congruent number.

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, 5005108511 + ... + 5005113510.

Almost surely, 2^{25025555052500} is an apocalyptic number.

25025555052500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25025555052500 is an abundant number, since it is smaller than the sum of its proper divisors (29700328741774).

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

25025555052500 is a wasteful number, since it uses less digits than its factorization.

25025555052500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010222045 (or 10010222028 counting only the distinct ones).

The product of its (nonzero) digits is 625000, while the sum is 41.

The spelling of 25025555052500 in words is "twenty-five trillion, twenty-five billion, five hundred fifty-five million, fifty-two thousand, five hundred".