255223836 has 72 divisors (see below), whose sum is σ = 739939200. Its totient is φ = 72661536.

The previous prime is 255223831. The next prime is 255223849. The reversal of 255223836 is 638322552.

255223836 is a `hidden beast` number, since 2 + 552 + 23 + 83 + 6 = 666.

255223836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 255223836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255223831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75715 + ... + 79013.

Almost surely, 2^255223836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255223836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369969600).

255223836 is an abundant number, since it is smaller than the sum of its proper divisors (484715364).

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

255223836 is a wasteful number, since it uses less digits than its factorization.

255223836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623 (or 3618 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 255223836 is about 15975.7264623553. The cubic root of 255223836 is about 634.3180609787.

The spelling of 255223836 in words is "two hundred fifty-five million, two hundred twenty-three thousand, eight hundred thirty-six".