2556805304 has 64 divisors (see below), whose sum is σ = 5349810240. Its totient is φ = 1139353600.

The previous prime is 2556805201. The next prime is 2556805313. The reversal of 2556805304 is 4035086552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311882 + ... + 319974.

It is an arithmetic number, because the mean of its divisors is an integer number (83590785).

Almost surely, 2^2556805304 is an apocalyptic number.

It is an amenable number.

2556805304 is an abundant number, since it is smaller than the sum of its proper divisors (2793004936).

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

2556805304 is a wasteful number, since it uses less digits than its factorization.

2556805304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240 (or 8236 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 2556805304 is about 50564.8623453085. The cubic root of 2556805304 is about 1367.4114732466.

The spelling of 2556805304 in words is "two billion, five hundred fifty-six million, eight hundred five thousand, three hundred four".