25250500500 has 96 divisors (see below), whose sum is σ = 73753051008. Its totient is φ = 6712992000.

The previous prime is 25250500489. The next prime is 25250500507. The reversal of 25250500500 is 500505252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250500507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471072 + ... + 521928.

It is an arithmetic number, because the mean of its divisors is an integer number (768260948).

Almost surely, 2^25250500500 is an apocalyptic number.

25250500500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25250500500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36876525504).

25250500500 is an abundant number, since it is smaller than the sum of its proper divisors (48502550508).

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

25250500500 is a wasteful number, since it uses less digits than its factorization.

25250500500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51210 (or 51198 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The spelling of 25250500500 in words is "twenty-five billion, two hundred fifty million, five hundred thousand, five hundred".