255757671 has 18 divisors (see below), whose sum is σ = 400033608. Its totient is φ = 157388400.

The previous prime is 255757603. The next prime is 255757717. The reversal of 255757671 is 176757552.

It is a happy number.

255757671 is a `hidden beast` number, since 2 + 5 + 5 + 7 + 576 + 71 = 666.

It is not a de Polignac number, because 255757671 - 2⁷ = 255757543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255767671) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82555 + ... + 85596.

Almost surely, 2^255757671 is an apocalyptic number.

255757671 is a deficient number, since it is larger than the sum of its proper divisors (144275937).

255757671 is a wasteful number, since it uses less digits than its factorization.

255757671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168183 (or 168167 counting only the distinct ones).

The product of its digits is 514500, while the sum is 45.

The square root of 255757671 is about 15992.4254258071. The cubic root of 255757671 is about 634.7600068548.

The spelling of 255757671 in words is "two hundred fifty-five million, seven hundred fifty-seven thousand, six hundred seventy-one".