205010250 has 128 divisors (see below), whose sum is σ = 537788160. Its totient is φ = 51968000.

The previous prime is 205010227. The next prime is 205010263. The reversal of 205010250 is 52010502.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1814194 + ... + 1814306.

It is an arithmetic number, because the mean of its divisors is an integer number (4201470).

Almost surely, 2^205010250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205010250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268894080).

205010250 is an abundant number, since it is smaller than the sum of its proper divisors (332777910).

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

205010250 is a wasteful number, since it uses less digits than its factorization.

205010250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 205010250 is about 14318.1790043287. The cubic root of 205010250 is about 589.6466811142.

Adding to 205010250 its reverse (52010502), we get a palindrome (257020752).

The spelling of 205010250 in words is "two hundred five million, ten thousand, two hundred fifty".