2005255404 has 36 divisors (see below), whose sum is σ = 5205839184. Its totient is φ = 650352672.

The previous prime is 2005255403. The next prime is 2005255411. The reversal of 2005255404 is 4045525002.

2005255404 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 255 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2005255403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 751392 + ... + 754055.

It is an arithmetic number, because the mean of its divisors is an integer number (144606644).

Almost surely, 2^2005255404 is an apocalyptic number.

It is an amenable number.

2005255404 is an abundant number, since it is smaller than the sum of its proper divisors (3200583780).

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

2005255404 is a wasteful number, since it uses less digits than its factorization.

2005255404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505494 (or 1505489 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 2005255404 is about 44780.0782044873. The cubic root of 2005255404 is about 1261.0236503771.

The spelling of 2005255404 in words is "two billion, five million, two hundred fifty-five thousand, four hundred four".