255992784 has 20 divisors (see below), whose sum is σ = 661314816. Its totient is φ = 85330912.

The previous prime is 255992767. The next prime is 255992837. The reversal of 255992784 is 487299552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2666544 + ... + 2666639.

Almost surely, 2^255992784 is an apocalyptic number.

255992784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255992784 is an abundant number, since it is smaller than the sum of its proper divisors (405322032).

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

255992784 is a wasteful number, since it uses less digits than its factorization.

255992784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333194 (or 5333188 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 255992784 is about 15999.7744984109. The cubic root of 255992784 is about 634.9544547489.

The spelling of 255992784 in words is "two hundred fifty-five million, nine hundred ninety-two thousand, seven hundred eighty-four".