2259498509 has 4 divisors (see below), whose sum is σ = 2392410204. Its totient is φ = 2126586816.

The previous prime is 2259498473. The next prime is 2259498517. The reversal of 2259498509 is 9058949522.

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 2102497609 + 157000900 = 45853^2 + 12530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2259498509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259498559) 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, 66455822 + ... + 66455855.

It is an arithmetic number, because the mean of its divisors is an integer number (598102551).

Almost surely, 2^2259498509 is an apocalyptic number.

It is an amenable number.

2259498509 is a deficient number, since it is larger than the sum of its proper divisors (132911695).

2259498509 is a wasteful number, since it uses less digits than its factorization.

2259498509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132911694.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 2259498509 is about 47534.1825321526. The cubic root of 2259498509 is about 1312.2120443903.

The spelling of 2259498509 in words is "two billion, two hundred fifty-nine million, four hundred ninety-eight thousand, five hundred nine".