2218459025 has 12 divisors (see below), whose sum is σ = 2751777372. Its totient is φ = 1774194240.

The previous prime is 2218458989. The next prime is 2218459049. The reversal of 2218459025 is 5209548122.

It can be written as a sum of positive squares in 6 ways, for example, as 12559936 + 2205899089 = 3544^2 + 46967^2 .

It is not a de Polignac number, because 2218459025 - 2¹⁰ = 2218458001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2218459025.

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 11 ways as a sum of consecutive naturals, for example, 75767 + ... + 100883.

It is an arithmetic number, because the mean of its divisors is an integer number (229314781).

Almost surely, 2^2218459025 is an apocalyptic number.

2218459025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2218459025 is a deficient number, since it is larger than the sum of its proper divisors (533318347).

2218459025 is a wasteful number, since it uses less digits than its factorization.

2218459025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28660 (or 28655 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2218459025 is about 47100.5204323689. The cubic root of 2218459025 is about 1304.2188432389.

The spelling of 2218459025 in words is "two billion, two hundred eighteen million, four hundred fifty-nine thousand, twenty-five".