255398016 has 64 divisors (see below), whose sum is σ = 683873280. Its totient is φ = 84446208.

The previous prime is 255397999. The next prime is 255398051. The reversal of 255398016 is 610893552.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46150 + ... + 51386.

It is an arithmetic number, because the mean of its divisors is an integer number (10685520).

Almost surely, 2^255398016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255398016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341936640).

255398016 is an abundant number, since it is smaller than the sum of its proper divisors (428475264).

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

255398016 is a wasteful number, since it uses less digits than its factorization.

255398016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381 (or 5369 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 255398016 is about 15981.1769278736. The cubic root of 255398016 is about 634.4623270174.

The spelling of 255398016 in words is "two hundred fifty-five million, three hundred ninety-eight thousand, sixteen".