255235881 has 8 divisors (see below), whose sum is σ = 341124544. Its totient is φ = 169752240.

The previous prime is 255235859. The next prime is 255235901. The reversal of 255235881 is 188532552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255235881 - 2¹⁰ = 255234857 is a prime.

It is a super-2 number, since 2×255235881² = 130290709899692322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255235801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99781 + ... + 102306.

It is an arithmetic number, because the mean of its divisors is an integer number (42640568).

Almost surely, 2^255235881 is an apocalyptic number.

It is an amenable number.

255235881 is a deficient number, since it is larger than the sum of its proper divisors (85888663).

255235881 is a wasteful number, since it uses less digits than its factorization.

255235881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202511.

The product of its digits is 96000, while the sum is 39.

The square root of 255235881 is about 15976.1034360698. The cubic root of 255235881 is about 634.3280394626.

The spelling of 255235881 in words is "two hundred fifty-five million, two hundred thirty-five thousand, eight hundred eighty-one".