2005475220 has 96 divisors (see below), whose sum is σ = 7130592000. Its totient is φ = 458393472.

The previous prime is 2005475183. The next prime is 2005475233. The reversal of 2005475220 is 225745002.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 261495 + ... + 269054.

It is an arithmetic number, because the mean of its divisors is an integer number (74277000).

Almost surely, 2^2005475220 is an apocalyptic number.

2005475220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005475220 is an abundant number, since it is smaller than the sum of its proper divisors (5125116780).

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

2005475220 is a wasteful number, since it uses less digits than its factorization.

2005475220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530574 (or 530566 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 2005475220 is about 44782.5325322273. The cubic root of 2005475220 is about 1261.0697264773.

The spelling of 2005475220 in words is "two billion, five million, four hundred seventy-five thousand, two hundred twenty".