25027800500 has 24 divisors (see below), whose sum is σ = 54660717384. Its totient is φ = 10011120000.

The previous prime is 25027800419. The next prime is 25027800557. The reversal of 25027800500 is 500872052.

It can be written as a sum of positive squares in 4 ways, for example, as 399520144 + 24628280356 = 19988^2 + 156934^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25027301 + ... + 25028300.

It is an arithmetic number, because the mean of its divisors is an integer number (2277529891).

Almost surely, 2^25027800500 is an apocalyptic number.

25027800500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25027800500 is an abundant number, since it is smaller than the sum of its proper divisors (29632916884).

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

25027800500 is a wasteful number, since it uses less digits than its factorization.

25027800500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50055620 (or 50055608 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The spelling of 25027800500 in words is "twenty-five billion, twenty-seven million, eight hundred thousand, five hundred".