2305405556 has 12 divisors (see below), whose sum is σ = 4042389540. Its totient is φ = 1150437120.

The previous prime is 2305405549. The next prime is 2305405573. The reversal of 2305405556 is 6555045032.

It can be written as a sum of positive squares in 2 ways, for example, as 2177715556 + 127690000 = 46666^2 + 11300^2 .

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, 564125 + ... + 568196.

It is an arithmetic number, because the mean of its divisors is an integer number (336865795).

Almost surely, 2^2305405556 is an apocalyptic number.

It is an amenable number.

2305405556 is a deficient number, since it is larger than the sum of its proper divisors (1736983984).

2305405556 is a wasteful number, since it uses less digits than its factorization.

2305405556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132834 (or 1132832 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 2305405556 is about 48014.6389760456. The cubic root of 2305405556 is about 1321.0394238761.

The spelling of 2305405556 in words is "two billion, three hundred five million, four hundred five thousand, five hundred fifty-six".