2805255700 has 72 divisors (see below), whose sum is σ = 6575313528. Its totient is φ = 1032683520.

The previous prime is 2805255683. The next prime is 2805255727. The reversal of 2805255700 is 75525082.

It can be written as a sum of positive squares in 12 ways, for example, as 1305087876 + 1500167824 = 36126^2 + 38732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455844 + ... + 461956.

It is an arithmetic number, because the mean of its divisors is an integer number (91323799).

Almost surely, 2^2805255700 is an apocalyptic number.

2805255700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2805255700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3287656764).

2805255700 is an abundant number, since it is smaller than the sum of its proper divisors (3770057828).

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

2805255700 is a wasteful number, since it uses less digits than its factorization.

2805255700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493 (or 6486 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 2805255700 is about 52964.6646359627. The cubic root of 2805255700 is about 1410.3410639819.

It can be divided in two parts, 280525 and 5700, that added together give a square (286225 = 535²).

The spelling of 2805255700 in words is "two billion, eight hundred five million, two hundred fifty-five thousand, seven hundred".