250138500 has 96 divisors (see below), whose sum is σ = 748255872. Its totient is φ = 64886400.

The previous prime is 250138489. The next prime is 250138571. The reversal of 250138500 is 5831052.

250138500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53247 + ... + 57753.

It is an arithmetic number, because the mean of its divisors is an integer number (7794332).

Almost surely, 2^250138500 is an apocalyptic number.

250138500 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 250138500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374127936).

250138500 is an abundant number, since it is smaller than the sum of its proper divisors (498117372).

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

250138500 is a wasteful number, since it uses less digits than its factorization.

250138500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566 (or 4554 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 250138500 is about 15815.7674489732. The cubic root of 250138500 is about 630.0768361815.

Adding to 250138500 its reverse (5831052), we get a palindrome (255969552).

The spelling of 250138500 in words is "two hundred fifty million, one hundred thirty-eight thousand, five hundred".