4545225 has 18 divisors (see below), whose sum is σ = 8141406. Its totient is φ = 2424000.

The previous prime is 4545223. The next prime is 4545241. The reversal of 4545225 is 5225454.

It can be written as a sum of positive squares in 3 ways, for example, as 84681 + 4460544 = 291^2 + 2112^2 .

It is not a de Polignac number, because 4545225 - 2¹ = 4545223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9876 + ... + 10325.

Almost surely, 2^4545225 is an apocalyptic number.

4545225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4545225 is a deficient number, since it is larger than the sum of its proper divisors (3596181).

4545225 is a wasteful number, since it uses less digits than its factorization.

4545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20217 (or 20209 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 4545225 is about 2131.9533296956. The cubic root of 4545225 is about 165.6475927410.

The spelling of 4545225 in words is "four million, five hundred forty-five thousand, two hundred twenty-five".