255761671 has 4 divisors (see below), whose sum is σ = 279012744. Its totient is φ = 232510600.

The previous prime is 255761659. The next prime is 255761677. The reversal of 255761671 is 176167552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255761671 - 2⁷ = 255761543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255761677) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11625520 + ... + 11625541.

It is an arithmetic number, because the mean of its divisors is an integer number (69753186).

Almost surely, 2^255761671 is an apocalyptic number.

255761671 is a deficient number, since it is larger than the sum of its proper divisors (23251073).

255761671 is a wasteful number, since it uses less digits than its factorization.

255761671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23251072.

The product of its digits is 88200, while the sum is 40.

The square root of 255761671 is about 15992.5504845225. The cubic root of 255761671 is about 634.7633160117.

The spelling of 255761671 in words is "two hundred fifty-five million, seven hundred sixty-one thousand, six hundred seventy-one".