255646424 has 16 divisors (see below), whose sum is σ = 522913320. Its totient is φ = 116202880.

The previous prime is 255646423. The next prime is 255646441. The reversal of 255646424 is 424646552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255646421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452449 + ... + 1452624.

Almost surely, 2^255646424 is an apocalyptic number.

It is an amenable number.

255646424 is an abundant number, since it is smaller than the sum of its proper divisors (267266896).

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

255646424 is a wasteful number, since it uses less digits than its factorization.

255646424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905090 (or 2905086 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 255646424 is about 15988.9469321779. The cubic root of 255646424 is about 634.6679595832.

The spelling of 255646424 in words is "two hundred fifty-five million, six hundred forty-six thousand, four hundred twenty-four".