2005214550 has 48 divisors (see below), whose sum is σ = 4988079552. Its totient is φ = 533095200.

The previous prime is 2005214539. The next prime is 2005214567. The reversal of 2005214550 is 554125002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2005214550.

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, 29457 + ... + 69843.

It is an arithmetic number, because the mean of its divisors is an integer number (103918324).

Almost surely, 2^2005214550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2005214550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494039776).

2005214550 is an abundant number, since it is smaller than the sum of its proper divisors (2982865002).

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

2005214550 is a wasteful number, since it uses less digits than its factorization.

2005214550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40733 (or 40728 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2005214550 is about 44779.6220394947. The cubic root of 2005214550 is about 1261.0150865121.

Adding to 2005214550 its reverse (554125002), we get a palindrome (2559339552).

The spelling of 2005214550 in words is "two billion, five million, two hundred fourteen thousand, five hundred fifty".