258049 has 4 divisors (see below), whose sum is σ = 281520. Its totient is φ = 234580.

The previous prime is 258031. The next prime is 258061. The reversal of 258049 is 940852.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258049 - 2⁷ = 257921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11719 + ... + 11740.

It is an arithmetic number, because the mean of its divisors is an integer number (70380).

It is a Proth number, since it is equal to 63 ⋅ 2¹² + 1 and 63 < 2¹².

2²⁵⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

258049 is a deficient number, since it is larger than the sum of its proper divisors (23471).

258049 is a wasteful number, since it uses less digits than its factorization.

258049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23470.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 258049 is about 507.9852360059. The cubic root of 258049 is about 63.6649975653.

The spelling of 258049 in words is "two hundred fifty-eight thousand, forty-nine".