2228510509 has 4 divisors (see below), whose sum is σ = 2229036316. Its totient is φ = 2227984704.

The previous prime is 2228510491. The next prime is 2228510563. The reversal of 2228510509 is 9050158222.

It is a happy number.

2228510509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 192515625 + 2035994884 = 13875^2 + 45122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228510509 - 2⁷ = 2228510381 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 (2228510309) 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, 256494 + ... + 265039.

It is an arithmetic number, because the mean of its divisors is an integer number (557259079).

Almost surely, 2^2228510509 is an apocalyptic number.

It is an amenable number.

2228510509 is a deficient number, since it is larger than the sum of its proper divisors (525807).

2228510509 is an equidigital number, since it uses as much as digits as its factorization.

2228510509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525806.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 2228510509 is about 47207.1023152237. The cubic root of 2228510509 is about 1306.1856117038.

The spelling of 2228510509 in words is "two billion, two hundred twenty-eight million, five hundred ten thousand, five hundred nine".