1255876671 has 16 divisors (see below), whose sum is σ = 1927689984. Its totient is φ = 712403904.

The previous prime is 1255876651. The next prime is 1255876679. The reversal of 1255876671 is 1766785521.

It is not a de Polignac number, because 1255876671 - 2²⁵ = 1222322239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255876671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255876679) 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 15 ways as a sum of consecutive naturals, for example, 215385 + ... + 221138.

It is an arithmetic number, because the mean of its divisors is an integer number (120480624).

Almost surely, 2^1255876671 is an apocalyptic number.

1255876671 is a deficient number, since it is larger than the sum of its proper divisors (671813313).

1255876671 is a wasteful number, since it uses less digits than its factorization.

1255876671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436670.

The product of its digits is 705600, while the sum is 48.

The square root of 1255876671 is about 35438.3502860954. The cubic root of 1255876671 is about 1078.9028269448.

The spelling of 1255876671 in words is "one billion, two hundred fifty-five million, eight hundred seventy-six thousand, six hundred seventy-one".