2256509312 has 32 divisors (see below), whose sum is σ = 4731994200. Its totient is φ = 1068871680.

The previous prime is 2256509309. The next prime is 2256509341. The reversal of 2256509312 is 2139056522.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461489 + ... + 466352.

Almost surely, 2^2256509312 is an apocalyptic number.

It is an amenable number.

2256509312 is an abundant number, since it is smaller than the sum of its proper divisors (2475484888).

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

2256509312 is an equidigital number, since it uses as much as digits as its factorization.

2256509312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927874 (or 927862 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2256509312 is about 47502.7295215759. The cubic root of 2256509312 is about 1311.6331266497.

The spelling of 2256509312 in words is "two billion, two hundred fifty-six million, five hundred nine thousand, three hundred twelve".