255881571 has 16 divisors (see below), whose sum is σ = 377293440. Its totient is φ = 152953920.

The previous prime is 255881567. The next prime is 255881579. The reversal of 255881571 is 175188552.

It is not a de Polignac number, because 255881571 - 2² = 255881567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255881579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50701 + ... + 55518.

It is an arithmetic number, because the mean of its divisors is an integer number (23580840).

Almost surely, 2^255881571 is an apocalyptic number.

255881571 is a deficient number, since it is larger than the sum of its proper divisors (121411869).

255881571 is a wasteful number, since it uses less digits than its factorization.

255881571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106306.

The product of its digits is 112000, while the sum is 42.

The square root of 255881571 is about 15996.2986656289. The cubic root of 255881571 is about 634.8624919768.

The spelling of 255881571 in words is "two hundred fifty-five million, eight hundred eighty-one thousand, five hundred seventy-one".