2005403255 has 32 divisors (see below), whose sum is σ = 2517419520. Its totient is φ = 1532442240.

The previous prime is 2005403251. The next prime is 2005403261. The reversal of 2005403255 is 5523045002.

It is not a de Polignac number, because 2005403255 - 2² = 2005403251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005403251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1944590 + ... + 1945620.

It is an arithmetic number, because the mean of its divisors is an integer number (78669360).

Almost surely, 2^2005403255 is an apocalyptic number.

2005403255 is a deficient number, since it is larger than the sum of its proper divisors (512016265).

2005403255 is a wasteful number, since it uses less digits than its factorization.

2005403255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 2005403255 is about 44781.7290309340. The cubic root of 2005403255 is about 1261.0546421110.

Adding to 2005403255 its reverse (5523045002), we get a palindrome (7528448257).

The spelling of 2005403255 in words is "two billion, five million, four hundred three thousand, two hundred fifty-five".