255222828 has 36 divisors (see below), whose sum is σ = 737311120. Its totient is φ = 72920736.

The previous prime is 255222809. The next prime is 255222829. The reversal of 255222828 is 828222552.

255222828 is a `hidden beast` number, since 2 + 552 + 22 + 82 + 8 = 666.

255222828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 255222792 and 255222801.

It is not an unprimeable number, because it can be changed into a prime (255222829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506143 + ... + 506646.

Almost surely, 2^255222828 is an apocalyptic number.

255222828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255222828 is an abundant number, since it is smaller than the sum of its proper divisors (482088292).

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

255222828 is a wasteful number, since it uses less digits than its factorization.

255222828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012806 (or 1012801 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 255222828 is about 15975.6949144630. The cubic root of 255222828 is about 634.3172259032.

The spelling of 255222828 in words is "two hundred fifty-five million, two hundred twenty-two thousand, eight hundred twenty-eight".