4391050225 has 27 divisors (see below), whose sum is σ = 5651498307. Its totient is φ = 3384286080.

The previous prime is 4391050219. The next prime is 4391050231. The reversal of 4391050225 is 5220501934.

The square root of 4391050225 is 66265.

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

It is an interprime number because it is at equal distance from previous prime (4391050219) and next prime (4391050231).

It can be written as a sum of positive squares in 13 ways, for example, as 987027889 + 3404022336 = 31417^2 + 58344^2 .

It is not a de Polignac number, because 4391050225 - 2³ = 4391050217 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, 9608197 + ... + 9608653.

Almost surely, 2^4391050225 is an apocalyptic number.

4391050225 is the 66265-th square number.

4391050225 is the 33133-rd centered octagonal number.

It is an amenable number.

4391050225 is a deficient number, since it is larger than the sum of its proper divisors (1260448082).

4391050225 is an frugal number, since it uses more digits than its factorization.

4391050225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The cubic root of 4391050225 is about 1637.5307656943.

The spelling of 4391050225 in words is "four billion, three hundred ninety-one million, fifty thousand, two hundred twenty-five".