256088256 has 56 divisors (see below), whose sum is σ = 707038464. Its totient is φ = 81649920.

The previous prime is 256088243. The next prime is 256088257. The reversal of 256088256 is 652880652.

It is a super-2 number, since 2×256088256² = 131162389722243072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256088257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24580 + ... + 33411.

Almost surely, 2^256088256 is an apocalyptic number.

It is an amenable number.

256088256 is an abundant number, since it is smaller than the sum of its proper divisors (450950208).

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

256088256 is a wasteful number, since it uses less digits than its factorization.

256088256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58029 (or 58019 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 256088256 is about 16002.7577623358. The cubic root of 256088256 is about 635.0333799387.

The spelling of 256088256 in words is "two hundred fifty-six million, eighty-eight thousand, two hundred fifty-six".