258288085 has 8 divisors (see below), whose sum is σ = 338122656. Its totient is φ = 187845840.

The previous prime is 258288059. The next prime is 258288097. The reversal of 258288085 is 580882852.

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

It is not a de Polignac number, because 258288085 - 2⁹ = 258287573 is a prime.

It is a super-3 number, since 3×258288085³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

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, 2348019 + ... + 2348128.

It is an arithmetic number, because the mean of its divisors is an integer number (42265332).

Almost surely, 2^258288085 is an apocalyptic number.

It is an amenable number.

258288085 is a deficient number, since it is larger than the sum of its proper divisors (79834571).

258288085 is a wasteful number, since it uses less digits than its factorization.

258288085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696163.

The product of its (nonzero) digits is 409600, while the sum is 46.

The square root of 258288085 is about 16071.3435966008. The cubic root of 258288085 is about 636.8465358346.

The spelling of 258288085 in words is "two hundred fifty-eight million, two hundred eighty-eight thousand, eighty-five".