255881934 has 96 divisors (see below), whose sum is σ = 694497024. Its totient is φ = 66147840.

The previous prime is 255881929. The next prime is 255881939. The reversal of 255881934 is 439188552.

255881934 is a `hidden beast` number, since 2 + 558 + 8 + 1 + 93 + 4 = 666.

255881934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255881929) and next prime (255881939).

It is a self number, because there is not a number n which added to its sum of digits gives 255881934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255881939) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 488997 + ... + 489519.

It is an arithmetic number, because the mean of its divisors is an integer number (7234344).

Almost surely, 2^255881934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255881934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347248512).

255881934 is an abundant number, since it is smaller than the sum of its proper divisors (438615090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255881934 is a wasteful number, since it uses less digits than its factorization.

255881934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 899 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 255881934 is about 15996.3100119996. The cubic root of 255881934 is about 634.8627921872.

The spelling of 255881934 in words is "two hundred fifty-five million, eight hundred eighty-one thousand, nine hundred thirty-four".