255681324 has 36 divisors (see below), whose sum is σ = 649892880. Its totient is φ = 84754080.

The previous prime is 255681277. The next prime is 255681337. The reversal of 255681324 is 423186552.

255681324 is a `hidden beast` number, since 2 + 556 + 81 + 3 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13104 + ... + 26135.

It is an arithmetic number, because the mean of its divisors is an integer number (18052580).

Almost surely, 2^255681324 is an apocalyptic number.

It is an amenable number.

255681324 is an abundant number, since it is smaller than the sum of its proper divisors (394211556).

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

255681324 is a wasteful number, since it uses less digits than its factorization.

255681324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39430 (or 39425 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 255681324 is about 15990.0382738754. The cubic root of 255681324 is about 634.6968391891.

The spelling of 255681324 in words is "two hundred fifty-five million, six hundred eighty-one thousand, three hundred twenty-four".