255719568 has 80 divisors (see below), whose sum is σ = 714079296. Its totient is φ = 78389760.

The previous prime is 255719567. The next prime is 255719623. The reversal of 255719568 is 865917552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (255719561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215938 + ... + 217118.

Almost surely, 2^255719568 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 255719568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357039648).

255719568 is an abundant number, since it is smaller than the sum of its proper divisors (458359728).

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

255719568 is a wasteful number, since it uses less digits than its factorization.

255719568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1546 counting only the distinct ones).

The product of its digits is 756000, while the sum is 48.

The square root of 255719568 is about 15991.2340987180. The cubic root of 255719568 is about 634.7284829235.

The spelling of 255719568 in words is "two hundred fifty-five million, seven hundred nineteen thousand, five hundred sixty-eight".