255424520 has 32 divisors (see below), whose sum is σ = 618914520. Its totient is φ = 94310400.

The previous prime is 255424517. The next prime is 255424529. The reversal of 255424520 is 25424552.

It can be written as a sum of positive squares in 4 ways, for example, as 189392644 + 66031876 = 13762^2 + 8126^2 .

It is not an unprimeable number, because it can be changed into a prime (255424529) 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, 245081 + ... + 246120.

Almost surely, 2^255424520 is an apocalyptic number.

255424520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255424520 is an abundant number, since it is smaller than the sum of its proper divisors (363490000).

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

255424520 is a wasteful number, since it uses less digits than its factorization.

255424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491225 (or 491221 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 255424520 is about 15982.0061318972. The cubic root of 255424520 is about 634.4842734262.

The spelling of 255424520 in words is "two hundred fifty-five million, four hundred twenty-four thousand, five hundred twenty".