2557696086 has 24 divisors (see below), whose sum is σ = 6045463944. Its totient is φ = 775059360.

The previous prime is 2557696073. The next prime is 2557696129. The reversal of 2557696086 is 6806967552.

It is a happy number.

2557696086 is a `hidden beast` number, since 2 + 5 + 576 + 9 + 60 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6458631 + ... + 6459026.

It is an arithmetic number, because the mean of its divisors is an integer number (251894331).

Almost surely, 2^2557696086 is an apocalyptic number.

2557696086 is an abundant number, since it is smaller than the sum of its proper divisors (3487767858).

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

2557696086 is a wasteful number, since it uses less digits than its factorization.

2557696086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12917676 (or 12917673 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The square root of 2557696086 is about 50573.6698885893. The cubic root of 2557696086 is about 1367.5702552620.

The spelling of 2557696086 in words is "two billion, five hundred fifty-seven million, six hundred ninety-six thousand, eighty-six".