258625 has 8 divisors (see below), whose sum is σ = 322920. Its totient is φ = 206800.

The previous prime is 258623. The next prime is 258631. The reversal of 258625 is 526852.

258625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 219024 = 199^2 + 468^2 .

It is not a de Polignac number, because 258625 - 2¹ = 258623 is a prime.

258625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 258593 and 258602.

It is not an unprimeable number, because it can be changed into a prime (258623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (40365).

2²⁵⁸⁶²⁵ is an apocalyptic number.

258625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258625 is a deficient number, since it is larger than the sum of its proper divisors (64295).

258625 is an equidigital number, since it uses as much as digits as its factorization.

258625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084 (or 2074 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 258625 is about 508.5518655948. The cubic root of 258625 is about 63.7123319702.

The spelling of 258625 in words is "two hundred fifty-eight thousand, six hundred twenty-five".