250005506000 has 120 divisors (see below), whose sum is σ = 606996701064. Its totient is φ = 99592588800.

The previous prime is 250005505973. The next prime is 250005506039. The reversal of 250005506000 is 605500052.

It can be written as a sum of positive squares in 4 ways, for example, as 17505856 + 249988000144 = 4184^2 + 499988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478021739 + ... + 478022261.

Almost surely, 2^250005506000 is an apocalyptic number.

250005506000 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 250005506000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303498350532).

250005506000 is an abundant number, since it is smaller than the sum of its proper divisors (356991195064).

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

250005506000 is an frugal number, since it uses more digits than its factorization.

250005506000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The spelling of 250005506000 in words is "two hundred fifty billion, five million, five hundred six thousand".