259398256 has 20 divisors (see below), whose sum is σ = 541244872. Its totient is φ = 119722176.

The previous prime is 259398253. The next prime is 259398259. The reversal of 259398256 is 652893952.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (259398253) and next prime (259398259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259398253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623346 + ... + 623761.

Almost surely, 2^259398256 is an apocalyptic number.

259398256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

259398256 is an abundant number, since it is smaller than the sum of its proper divisors (281846616).

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

259398256 is a wasteful number, since it uses less digits than its factorization.

259398256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247128 (or 1247122 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The square root of 259398256 is about 16105.8453984881. The cubic root of 259398256 is about 637.7576606035.

The spelling of 259398256 in words is "two hundred fifty-nine million, three hundred ninety-eight thousand, two hundred fifty-six".