255411222 has 64 divisors (see below), whose sum is σ = 586510848. Its totient is φ = 73440000.

The previous prime is 255411217. The next prime is 255411223. The reversal of 255411222 is 222114552.

It is a junction number, because it is equal to n+sod(n) for n = 255411192 and 255411201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255411223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98847 + ... + 101397.

It is an arithmetic number, because the mean of its divisors is an integer number (9164232).

Almost surely, 2^255411222 is an apocalyptic number.

255411222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 255411222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293255424).

255411222 is an abundant number, since it is smaller than the sum of its proper divisors (331099626).

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

255411222 is a wasteful number, since it uses less digits than its factorization.

255411222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645.

The product of its digits is 1600, while the sum is 24.

The square root of 255411222 is about 15981.5900961075. The cubic root of 255411222 is about 634.4732623217.

Adding to 255411222 its reverse (222114552), we get a palindrome (477525774).

The spelling of 255411222 in words is "two hundred fifty-five million, four hundred eleven thousand, two hundred twenty-two".