4486990225 has 9 divisors (see below), whose sum is σ = 5564283217. Its totient is φ = 3589324240.

The previous prime is 4486990223. The next prime is 4486990247. The reversal of 4486990225 is 5220996844.

The square root of 4486990225 is 66985.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2056894609 + 2430095616 = 45353^2 + 49296^2 .

It is not a de Polignac number, because 4486990225 - 2¹ = 4486990223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4486990223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 328227 + ... + 341623.

Almost surely, 2^4486990225 is an apocalyptic number.

4486990225 is the 66985-th square number.

4486990225 is the 33493-rd centered octagonal number.

It is an amenable number.

4486990225 is a deficient number, since it is larger than the sum of its proper divisors (1077292992).

4486990225 is an frugal number, since it uses more digits than its factorization.

4486990225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26804 (or 13402 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The cubic root of 4486990225 is about 1649.3710764986.

Multiplying 4486990225 by its sum of digits (49), we get a square (219862521025 = 468895²).

The spelling of 4486990225 in words is "four billion, four hundred eighty-six million, nine hundred ninety thousand, two hundred twenty-five".