715568256 has 160 divisors (see below), whose sum is σ = 2293760700. Its totient is φ = 220133376.

The previous prime is 715568251. The next prime is 715568261. The reversal of 715568256 is 652865517.

715568256 is a `hidden beast` number, since 71 + 556 + 8 + 25 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (715568251) and next prime (715568261).

It can be written as a sum of positive squares in 2 ways, for example, as 514382400 + 201185856 = 22680^2 + 14184^2 .

It is not an unprimeable number, because it can be changed into a prime (715568251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 132130 + ... + 137438.

Almost surely, 2^715568256 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 715568256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146880350).

715568256 is an abundant number, since it is smaller than the sum of its proper divisors (1578192444).

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

715568256 is a wasteful number, since it uses less digits than its factorization.

715568256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348 (or 5327 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 715568256 is about 26750.1075885687. The cubic root of 715568256 is about 894.4382338636.

The spelling of 715568256 in words is "seven hundred fifteen million, five hundred sixty-eight thousand, two hundred fifty-six".