2005550 has 12 divisors (see below), whose sum is σ = 3730416. Its totient is φ = 802200.

The previous prime is 2005547. The next prime is 2005559. The reversal of 2005550 is 555002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20006 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (310868).

2^2005550 is an apocalyptic number.

2005550 is a deficient number, since it is larger than the sum of its proper divisors (1724866).

2005550 is a wasteful number, since it uses less digits than its factorization.

2005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40123 (or 40118 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 2005550 is about 1416.1744242854. The cubic root of 2005550 is about 126.1085400505.

The spelling of 2005550 in words is "two million, five thousand, five hundred fifty".