258089995 has 8 divisors (see below), whose sum is σ = 320387760. Its totient is φ = 199352160.

The previous prime is 258089989. The next prime is 258090011. The reversal of 258089995 is 599980852.

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

It is not a de Polignac number, because 258089995 - 2¹⁵ = 258057227 is a prime.

It is a super-2 number, since 2×258089995² = 133220891038200050, which contains 22 as substring.

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, 889821 + ... + 890110.

It is an arithmetic number, because the mean of its divisors is an integer number (40048470).

Almost surely, 2^258089995 is an apocalyptic number.

258089995 is a deficient number, since it is larger than the sum of its proper divisors (62297765).

258089995 is a wasteful number, since it uses less digits than its factorization.

258089995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779965.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The square root of 258089995 is about 16065.1795819406. The cubic root of 258089995 is about 636.6836877053.

The spelling of 258089995 in words is "two hundred fifty-eight million, eighty-nine thousand, nine hundred ninety-five".