258725 has 12 divisors (see below), whose sum is σ = 327360. Its totient is φ = 202800.

The previous prime is 258721. The next prime is 258733. The reversal of 258725 is 527852.

It is not a de Polignac number, because 258725 - 2² = 258721 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258725.

It is not an unprimeable number, because it can be changed into a prime (258721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1910 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (27280).

2²⁵⁸⁷²⁵ is an apocalyptic number.

258725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258725 is a deficient number, since it is larger than the sum of its proper divisors (68635).

258725 is a wasteful number, since it uses less digits than its factorization.

258725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 215 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 258725 is about 508.6501744814. The cubic root of 258725 is about 63.7205425868.

The spelling of 258725 in words is "two hundred fifty-eight thousand, seven hundred twenty-five".