259285 has 8 divisors (see below), whose sum is σ = 335160. Its totient is φ = 191424.

The previous prime is 259277. The next prime is 259309. The reversal of 259285 is 582952.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 256036 = 57^2 + 506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 259285 - 2³ = 259277 is a prime.

It is a super-2 number, since 2×259285² = 134457422450, which contains 22 as substring.

It is a congruent number.

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, 1930 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (41895).

2²⁵⁹²⁸⁵ is an apocalyptic number.

It is an amenable number.

259285 is a deficient number, since it is larger than the sum of its proper divisors (75875).

259285 is a wasteful number, since it uses less digits than its factorization.

259285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007.

The product of its digits is 7200, while the sum is 31.

The square root of 259285 is about 509.2003534956. The cubic root of 259285 is about 63.7664829863.

The spelling of 259285 in words is "two hundred fifty-nine thousand, two hundred eighty-five".