4521025 has 12 divisors (see below), whose sum is σ = 5641132. Its totient is φ = 3594240.

The previous prime is 4521001. The next prime is 4521037. The reversal of 4521025 is 5201254.

4521025 = 1503² + 1504².

It can be written as a sum of positive squares in 6 ways, for example, as 1252161 + 3268864 = 1119^2 + 1808^2 .

It is not a de Polignac number, because 4521025 - 2²¹ = 2423873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4520993 and 4521011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4357 + ... + 5293.

Almost surely, 2^4521025 is an apocalyptic number.

4521025 is the 1504-th centered square number.

It is an amenable number.

4521025 is a deficient number, since it is larger than the sum of its proper divisors (1120107).

4521025 is a wasteful number, since it uses less digits than its factorization.

4521025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4521025 is about 2126.2702086047. The cubic root of 4521025 is about 165.3530853346.

Adding to 4521025 its reverse (5201254), we get a palindrome (9722279).

The spelling of 4521025 in words is "four million, five hundred twenty-one thousand, twenty-five".