255998616 has 16 divisors (see below), whose sum is σ = 639996600. Its totient is φ = 85332864.

The previous prime is 255998591. The next prime is 255998623. The reversal of 255998616 is 616899552.

It is a congruent number.

It is an unprimeable number.

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, 5333281 + ... + 5333328.

Almost surely, 2^255998616 is an apocalyptic number.

It is an amenable number.

255998616 is an abundant number, since it is smaller than the sum of its proper divisors (383997984).

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

255998616 is a wasteful number, since it uses less digits than its factorization.

255998616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666618 (or 10666614 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 255998616 is about 15999.9567499415. The cubic root of 255998616 is about 634.9592765336.

The spelling of 255998616 in words is "two hundred fifty-five million, nine hundred ninety-eight thousand, six hundred sixteen".