2005315256 has 32 divisors (see below), whose sum is σ = 4355977440. Its totient is φ = 847646208.

The previous prime is 2005315243. The next prime is 2005315327. The reversal of 2005315256 is 6525135002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241181 + ... + 249356.

It is an arithmetic number, because the mean of its divisors is an integer number (136124295).

Almost surely, 2^2005315256 is an apocalyptic number.

It is an amenable number.

2005315256 is an abundant number, since it is smaller than the sum of its proper divisors (2350662184).

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

2005315256 is a wasteful number, since it uses less digits than its factorization.

2005315256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490623 (or 490619 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2005315256 is about 44780.7464877485. The cubic root of 2005315256 is about 1261.0361964160.

The spelling of 2005315256 in words is "two billion, five million, three hundred fifteen thousand, two hundred fifty-six".