2005500 has 96 divisors (see below), whose sum is σ = 6709248. Its totient is φ = 456000.

The previous prime is 2005499. The next prime is 2005519. The reversal of 2005500 is 55002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10405 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (69888).

2^2005500 is an apocalyptic number.

2005500 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 2005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354624).

2005500 is an abundant number, since it is smaller than the sum of its proper divisors (4703748).

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

2005500 is a wasteful number, since it uses less digits than its factorization.

2005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 2005500 is about 1416.1567709826. The cubic root of 2005500 is about 126.1074920455.

The spelling of 2005500 in words is "two million, five thousand, five hundred".