2557850860 has 24 divisors (see below), whose sum is σ = 5379178896. Its totient is φ = 1021675200.

The previous prime is 2557850843. The next prime is 2557850903. The reversal of 2557850860 is 680587552.

It is a self number, because there is not a number n which added to its sum of digits gives 2557850860.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77202 + ... + 105241.

It is an arithmetic number, because the mean of its divisors is an integer number (224132454).

Almost surely, 2^2557850860 is an apocalyptic number.

2557850860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2557850860 is an abundant number, since it is smaller than the sum of its proper divisors (2821328036).

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

2557850860 is a wasteful number, since it uses less digits than its factorization.

2557850860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183153 (or 183151 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 2557850860 is about 50575.2000490359. The cubic root of 2557850860 is about 1367.5978399896.

The spelling of 2557850860 in words is "two billion, five hundred fifty-seven million, eight hundred fifty thousand, eight hundred sixty".