255004320 has 96 divisors (see below), whose sum is σ = 845570880. Its totient is φ = 64419840.

The previous prime is 255004307. The next prime is 255004327. The reversal of 255004320 is 23400552.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (255004327) 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 15 ways as a sum of consecutive naturals, for example, 4861 + ... + 23100.

It is an arithmetic number, because the mean of its divisors is an integer number (8808030).

Almost surely, 2^255004320 is an apocalyptic number.

255004320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255004320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422785440).

255004320 is an abundant number, since it is smaller than the sum of its proper divisors (590566560).

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

255004320 is a wasteful number, since it uses less digits than its factorization.

255004320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27998 (or 27990 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 255004320 is about 15968.8546865453. The cubic root of 255004320 is about 634.1361515022.

Adding to 255004320 its reverse (23400552), we get a palindrome (278404872).

The spelling of 255004320 in words is "two hundred fifty-five million, four thousand, three hundred twenty".