2005550010 has 128 divisors (see below), whose sum is σ = 5696697600. Its totient is φ = 500336640.

The previous prime is 2005549957. The next prime is 2005550033. The reversal of 2005550010 is 100555002.

It is a super-2 number, since 2×2005550010² = 8044461685222000200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 820390 + ... + 822830.

It is an arithmetic number, because the mean of its divisors is an integer number (44505450).

Almost surely, 2^2005550010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2005550010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2848348800).

2005550010 is an abundant number, since it is smaller than the sum of its proper divisors (3691147590).

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

2005550010 is a wasteful number, since it uses less digits than its factorization.

2005550010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 2005550010 is about 44783.3675598430. The cubic root of 2005550010 is about 1261.0854026009.

The spelling of 2005550010 in words is "two billion, five million, five hundred fifty thousand, ten".