258326089 has 6 divisors (see below), whose sum is σ = 300501834. Its totient is φ = 221422320.

The previous prime is 258326083. The next prime is 258326111. The reversal of 258326089 is 980623852.

It can be written as a sum of positive squares in only one way, i.e., 204919225 + 53406864 = 14315^2 + 7308^2 .

It is not a de Polignac number, because 258326089 - 2¹¹ = 258324041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258326083) 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 5 ways as a sum of consecutive naturals, for example, 2635932 + ... + 2636029.

It is an arithmetic number, because the mean of its divisors is an integer number (50083639).

Almost surely, 2^258326089 is an apocalyptic number.

It is an amenable number.

258326089 is a deficient number, since it is larger than the sum of its proper divisors (42175745).

258326089 is an equidigital number, since it uses as much as digits as its factorization.

258326089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271975 (or 5271968 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 258326089 is about 16072.5259060298. The cubic root of 258326089 is about 636.8777690843.

The spelling of 258326089 in words is "two hundred fifty-eight million, three hundred twenty-six thousand, eighty-nine".