258025 has 6 divisors (see below), whose sum is σ = 319982. Its totient is φ = 206400.

The previous prime is 258023. The next prime is 258031. The reversal of 258025 is 520852.

It can be written as a sum of positive squares in 3 ways, for example, as 19881 + 238144 = 141^2 + 488^2 .

It is not a de Polignac number, because 258025 - 2¹ = 258023 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 257987 and 258005.

It is not an unprimeable number, because it can be changed into a prime (258023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5136 + ... + 5185.

2²⁵⁸⁰²⁵ is an apocalyptic number.

258025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258025 is a deficient number, since it is larger than the sum of its proper divisors (61957).

258025 is a wasteful number, since it uses less digits than its factorization.

258025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331 (or 10326 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 258025 is about 507.9616127229. The cubic root of 258025 is about 63.6630237706.

Adding to 258025 its reverse (520852), we get a palindrome (778877).

The spelling of 258025 in words is "two hundred fifty-eight thousand, twenty-five".