258308249 has 16 divisors (see below), whose sum is σ = 285518400. Its totient is φ = 232714944.

The previous prime is 258308233. The next prime is 258308263. The reversal of 258308249 is 942803852.

It is a cyclic number.

It is not a de Polignac number, because 258308249 - 2⁴ = 258308233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258308269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33419 + ... + 40415.

It is an arithmetic number, because the mean of its divisors is an integer number (17844900).

Almost surely, 2^258308249 is an apocalyptic number.

258308249 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

258308249 is a deficient number, since it is larger than the sum of its proper divisors (27210151).

258308249 is a wasteful number, since it uses less digits than its factorization.

258308249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 258308249 is about 16071.9709121190. The cubic root of 258308249 is about 636.8631078203.

The spelling of 258308249 in words is "two hundred fifty-eight million, three hundred eight thousand, two hundred forty-nine".