258308285 has 32 divisors (see below), whose sum is σ = 351827712. Its totient is φ = 180956160.

The previous prime is 258308279. The next prime is 258308327. The reversal of 258308285 is 582803852.

It is not a de Polignac number, because 258308285 - 2⁴ = 258308269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70550 + ... + 74120.

It is an arithmetic number, because the mean of its divisors is an integer number (10994616).

Almost surely, 2^258308285 is an apocalyptic number.

It is an amenable number.

258308285 is a deficient number, since it is larger than the sum of its proper divisors (93519427).

258308285 is a wasteful number, since it uses less digits than its factorization.

258308285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 258308285 is about 16071.9720320812. The cubic root of 258308285 is about 636.8631374065.

The spelling of 258308285 in words is "two hundred fifty-eight million, three hundred eight thousand, two hundred eighty-five".