255858164775 has 30 divisors (see below), whose sum is σ = 473937769712. Its totient is φ = 136457686800.

The previous prime is 255858164767. The next prime is 255858164833. The reversal of 255858164775 is 577461858552.

It is a happy number.

255858164775 is a `hidden beast` number, since 2 + 5 + 5 + 8 + 581 + 6 + 47 + 7 + 5 = 666.

255858164775 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 255858164775 - 2³ = 255858164767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 63172831 + ... + 63176880.

Almost surely, 2^255858164775 is an apocalyptic number.

255858164775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255858164775 is a deficient number, since it is larger than the sum of its proper divisors (218079604937).

255858164775 is a wasteful number, since it uses less digits than its factorization.

255858164775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126349733 (or 126349719 counting only the distinct ones).

The product of its digits is 94080000, while the sum is 63.

The spelling of 255858164775 in words is "two hundred fifty-five billion, eight hundred fifty-eight million, one hundred sixty-four thousand, seven hundred seventy-five".