4515625 has 21 divisors (see below), whose sum is σ = 5996017. Its totient is φ = 3400000.

The previous prime is 4515607. The next prime is 4515629. The reversal of 4515625 is 5265154.

The square root of 4515625 is 2125.

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

It can be written as a sum of positive squares in 10 ways, for example, as 4439449 + 76176 = 2107^2 + 276^2 .

It is not a de Polignac number, because 4515625 - 2⁹ = 4515113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4515593 and 4515602.

It is not an unprimeable number, because it can be changed into a prime (4515629) 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 20 ways as a sum of consecutive naturals, for example, 265617 + ... + 265633.

Almost surely, 2^4515625 is an apocalyptic number.

4515625 is the 2125-th square number.

4515625 is the 1063-rd centered octagonal number.

It is an amenable number.

4515625 is a deficient number, since it is larger than the sum of its proper divisors (1480392).

4515625 is an frugal number, since it uses more digits than its factorization.

4515625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 22 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The cubic root of 4515625 is about 165.2872254614.

The spelling of 4515625 in words is "four million, five hundred fifteen thousand, six hundred twenty-five".