2258495209 has 4 divisors (see below), whose sum is σ = 2313580500. Its totient is φ = 2203409920.

The previous prime is 2258495191. The next prime is 2258495219. The reversal of 2258495209 is 9025948522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 429649984 + 1828845225 = 20728^2 + 42765^2 .

It is a cyclic number.

It is not a de Polignac number, because 2258495209 - 2⁵ = 2258495177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2258495219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27542584 + ... + 27542665.

It is an arithmetic number, because the mean of its divisors is an integer number (578395125).

Almost surely, 2^2258495209 is an apocalyptic number.

It is an amenable number.

2258495209 is a deficient number, since it is larger than the sum of its proper divisors (55085291).

2258495209 is an equidigital number, since it uses as much as digits as its factorization.

2258495209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55085290.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 2258495209 is about 47523.6279023393. The cubic root of 2258495209 is about 1312.0177922511.

The spelling of 2258495209 in words is "two billion, two hundred fifty-eight million, four hundred ninety-five thousand, two hundred nine".