258329485 has 4 divisors (see below), whose sum is σ = 309995388. Its totient is φ = 206663584.

The previous prime is 258329483. The next prime is 258329497. The reversal of 258329485 is 584923852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126585001 + 131744484 = 11251^2 + 11478^2 .

It is a cyclic number.

It is not a de Polignac number, because 258329485 - 2¹ = 258329483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258329483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25832944 + ... + 25832953.

It is an arithmetic number, because the mean of its divisors is an integer number (77498847).

Almost surely, 2^258329485 is an apocalyptic number.

It is an amenable number.

258329485 is a deficient number, since it is larger than the sum of its proper divisors (51665903).

258329485 is an equidigital number, since it uses as much as digits as its factorization.

258329485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51665902.

The product of its digits is 691200, while the sum is 46.

The square root of 258329485 is about 16072.6315518026. The cubic root of 258329485 is about 636.8805599076.

The spelling of 258329485 in words is "two hundred fifty-eight million, three hundred twenty-nine thousand, four hundred eighty-five".