255404424 has 32 divisors (see below), whose sum is σ = 696558240. Its totient is φ = 77395200.

The previous prime is 255404423. The next prime is 255404431. The reversal of 255404424 is 424404552.

It is a junction number, because it is equal to n+sod(n) for n = 255404391 and 255404400.

It is not an unprimeable number, because it can be changed into a prime (255404423) 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 7 ways as a sum of consecutive naturals, for example, 483457 + ... + 483984.

It is an arithmetic number, because the mean of its divisors is an integer number (21767445).

Almost surely, 2^255404424 is an apocalyptic number.

255404424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255404424 is an abundant number, since it is smaller than the sum of its proper divisors (441153816).

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

255404424 is a wasteful number, since it uses less digits than its factorization.

255404424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967461 (or 967457 counting only the distinct ones).

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

The square root of 255404424 is about 15981.3774124761. The cubic root of 255404424 is about 634.4676332457.

Adding to 255404424 its reverse (424404552), we get a palindrome (679808976).

The spelling of 255404424 in words is "two hundred fifty-five million, four hundred four thousand, four hundred twenty-four".