205550450 has 24 divisors (see below), whose sum is σ = 436942272. Its totient is φ = 70474320.

The previous prime is 205550441. The next prime is 205550459. The reversal of 205550450 is 54055502.

It is an interprime number because it is at equal distance from previous prime (205550441) and next prime (205550459).

It is not an unprimeable number, because it can be changed into a prime (205550459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293294 + ... + 293993.

It is an arithmetic number, because the mean of its divisors is an integer number (18205928).

Almost surely, 2^205550450 is an apocalyptic number.

205550450 is an abundant number, since it is smaller than the sum of its proper divisors (231391822).

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

205550450 is a wasteful number, since it uses less digits than its factorization.

205550450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587306 (or 587301 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 205550450 is about 14337.0307246654. The cubic root of 205550450 is about 590.1641312969.

The spelling of 205550450 in words is "two hundred five million, five hundred fifty thousand, four hundred fifty".