255678998 has 8 divisors (see below), whose sum is σ = 386912808. Its totient is φ = 126708064.

The previous prime is 255678889. The next prime is 255679007. The reversal of 255678998 is 899876552.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 565436 + ... + 565887.

It is an arithmetic number, because the mean of its divisors is an integer number (48364101).

Almost surely, 2^255678998 is an apocalyptic number.

255678998 is a deficient number, since it is larger than the sum of its proper divisors (131233810).

255678998 is a wasteful number, since it uses less digits than its factorization.

255678998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131438.

The product of its digits is 10886400, while the sum is 59.

The square root of 255678998 is about 15989.9655409260. The cubic root of 255678998 is about 634.6949145154.

The spelling of 255678998 in words is "two hundred fifty-five million, six hundred seventy-eight thousand, nine hundred ninety-eight".