255885893 has 4 divisors (see below), whose sum is σ = 258233580. Its totient is φ = 253538208.

The previous prime is 255885881. The next prime is 255885913. The reversal of 255885893 is 398588552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 195077089 + 60808804 = 13967^2 + 7798^2 .

It is a cyclic number.

It is not a de Polignac number, because 255885893 - 2¹⁰ = 255884869 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 (255885793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173680 + ... + 1173897.

It is an arithmetic number, because the mean of its divisors is an integer number (64558395).

Almost surely, 2^255885893 is an apocalyptic number.

It is an amenable number.

255885893 is a deficient number, since it is larger than the sum of its proper divisors (2347687).

255885893 is a wasteful number, since it uses less digits than its factorization.

255885893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347686.

The product of its digits is 3456000, while the sum is 53.

The square root of 255885893 is about 15996.4337588101. The cubic root of 255885893 is about 634.8660663650.

The spelling of 255885893 in words is "two hundred fifty-five million, eight hundred eighty-five thousand, eight hundred ninety-three".