255424422 has 32 divisors (see below), whose sum is σ = 590073984. Its totient is φ = 72848000.

The previous prime is 255424381. The next prime is 255424427. The reversal of 255424422 is 224424552.

It is a self number, because there is not a number n which added to its sum of digits gives 255424422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255424427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112704 + ... + 114947.

It is an arithmetic number, because the mean of its divisors is an integer number (18439812).

Almost surely, 2^255424422 is an apocalyptic number.

255424422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

255424422 is an abundant number, since it is smaller than the sum of its proper divisors (334649562).

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

255424422 is a wasteful number, since it uses less digits than its factorization.

255424422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227684.

The product of its digits is 25600, while the sum is 30.

The square root of 255424422 is about 15982.0030659489. The cubic root of 255424422 is about 634.4841922810.

Adding to 255424422 its reverse (224424552), we get a palindrome (479848974).

The spelling of 255424422 in words is "two hundred fifty-five million, four hundred twenty-four thousand, four hundred twenty-two".