258272256 has 88 divisors (see below), whose sum is σ = 751068864. Its totient is φ = 78254080.

The previous prime is 258272249. The next prime is 258272269. The reversal of 258272256 is 652272852.

It is a tau number, because it is divible by the number of its divisors (88).

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, 29971 + ... + 37613.

Almost surely, 2^258272256 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 258272256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375534432).

258272256 is an abundant number, since it is smaller than the sum of its proper divisors (492796608).

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

258272256 is a wasteful number, since it uses less digits than its factorization.

258272256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677 (or 7659 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 258272256 is about 16070.8511286739. The cubic root of 258272256 is about 636.8335260078.

The spelling of 258272256 in words is "two hundred fifty-eight million, two hundred seventy-two thousand, two hundred fifty-six".