255957767 has 12 divisors (see below), whose sum is σ = 278364960. Its totient is φ = 235243008.

The previous prime is 255957761. The next prime is 255957787. The reversal of 255957767 is 767759552.

255957767 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255957767 - 2⁶ = 255957703 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 (255957761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37223 + ... + 43559.

It is an arithmetic number, because the mean of its divisors is an integer number (23197080).

Almost surely, 2^255957767 is an apocalyptic number.

255957767 is a deficient number, since it is larger than the sum of its proper divisors (22407193).

255957767 is a wasteful number, since it uses less digits than its factorization.

255957767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602 (or 6589 counting only the distinct ones).

The product of its digits is 4630500, while the sum is 53.

The square root of 255957767 is about 15998.6801643136. The cubic root of 255957767 is about 634.9255018312.

The spelling of 255957767 in words is "two hundred fifty-five million, nine hundred fifty-seven thousand, seven hundred sixty-seven".