2557985228 has 24 divisors (see below), whose sum is σ = 4585799232. Its totient is φ = 1248114384.

The previous prime is 2557985207. The next prime is 2557985233. The reversal of 2557985228 is 8225897552.

2557985228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2557985228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15926 + ... + 73277.

It is an arithmetic number, because the mean of its divisors is an integer number (191074968).

Almost surely, 2^2557985228 is an apocalyptic number.

It is an amenable number.

2557985228 is a deficient number, since it is larger than the sum of its proper divisors (2027814004).

2557985228 is a wasteful number, since it uses less digits than its factorization.

2557985228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89381 (or 89379 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 53.

The square root of 2557985228 is about 50576.5284296975. The cubic root of 2557985228 is about 1367.6217869382.

The spelling of 2557985228 in words is "two billion, five hundred fifty-seven million, nine hundred eighty-five thousand, two hundred twenty-eight".