2558155568 has 20 divisors (see below), whose sum is σ = 4974860160. Its totient is φ = 1274320704.

The previous prime is 2558155541. The next prime is 2558155591. The reversal of 2558155568 is 8655518552.

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, 292880 + ... + 301487.

It is an arithmetic number, because the mean of its divisors is an integer number (248743008).

Almost surely, 2^2558155568 is an apocalyptic number.

It is an amenable number.

2558155568 is a deficient number, since it is larger than the sum of its proper divisors (2416704592).

2558155568 is a wasteful number, since it uses less digits than its factorization.

2558155568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594644 (or 594638 counting only the distinct ones).

The product of its digits is 2400000, while the sum is 50.

The square root of 2558155568 is about 50578.2123843854. The cubic root of 2558155568 is about 1367.6521435800.

The spelling of 2558155568 in words is "two billion, five hundred fifty-eight million, one hundred fifty-five thousand, five hundred sixty-eight".