2399530225 has 27 divisors (see below), whose sum is σ = 3036469251. Its totient is φ = 1881024000.

The previous prime is 2399530219. The next prime is 2399530283. The reversal of 2399530225 is 5220359932.

The square root of 2399530225 is 48985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 350700529 + 2048829696 = 18727^2 + 45264^2 .

It is not a de Polignac number, because 2399530225 - 2⁵ = 2399530193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23757675 + ... + 23757775.

Almost surely, 2^2399530225 is an apocalyptic number.

2399530225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2399530225 is the 48985-th square number.

2399530225 is the 24493-rd centered octagonal number.

It is an amenable number.

2399530225 is a deficient number, since it is larger than the sum of its proper divisors (636939026).

2399530225 is an frugal number, since it uses more digits than its factorization.

2399530225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 40.

The cubic root of 2399530225 is about 1338.7785381129.

The spelling of 2399530225 in words is "two billion, three hundred ninety-nine million, five hundred thirty thousand, two hundred twenty-five".