258217023 has 8 divisors (see below), whose sum is σ = 344448688. Its totient is φ = 172065024.

The previous prime is 258217009. The next prime is 258217039. The reversal of 258217023 is 320712852.

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

It is not a de Polignac number, because 258217023 - 2⁵ = 258216991 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 (258217093) 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, 11890 + ... + 25647.

It is an arithmetic number, because the mean of its divisors is an integer number (43056086).

Almost surely, 2^258217023 is an apocalyptic number.

258217023 is a deficient number, since it is larger than the sum of its proper divisors (86231665).

258217023 is a wasteful number, since it uses less digits than its factorization.

258217023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39833.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 258217023 is about 16069.1326150480. The cubic root of 258217023 is about 636.7881259399.

Adding to 258217023 its reverse (320712852), we get a palindrome (578929875).

The spelling of 258217023 in words is "two hundred fifty-eight million, two hundred seventeen thousand, twenty-three".