255505424 has 20 divisors (see below), whose sum is σ = 508422444. Its totient is φ = 124299648.

The previous prime is 255505423. The next prime is 255505429. The reversal of 255505424 is 424505552.

It can be written as a sum of positive squares in 2 ways, for example, as 109579024 + 145926400 = 10468^2 + 12080^2 .

It is a super-3 number, since 3×255505424³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (255505423) 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 3 ways as a sum of consecutive naturals, for example, 215207 + ... + 216390.

Almost surely, 2^255505424 is an apocalyptic number.

It is an amenable number.

255505424 is a deficient number, since it is larger than the sum of its proper divisors (252917020).

255505424 is a wasteful number, since it uses less digits than its factorization.

255505424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431642 (or 431636 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 255505424 is about 15984.5370280155. The cubic root of 255505424 is about 634.5512558977.

The spelling of 255505424 in words is "two hundred fifty-five million, five hundred five thousand, four hundred twenty-four".