250010000 has 100 divisors (see below), whose sum is σ = 632197632. Its totient is φ = 95568000.

The previous prime is 250009993. The next prime is 250010011. The reversal of 250010000 is 10052.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 250010000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 229457 + ... + 230543.

Almost surely, 2^250010000 is an apocalyptic number.

250010000 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 250010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316098816).

250010000 is an abundant number, since it is smaller than the sum of its proper divisors (382187632).

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

250010000 is a wasteful number, since it uses less digits than its factorization.

250010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 250010000 is about 15811.7045254457. The cubic root of 250010000 is about 629.9689243091.

Adding to 250010000 its reverse (10052), we get a palindrome (250020052).

The spelling of 250010000 in words is "two hundred fifty million, ten thousand".