4513525 has 6 divisors (see below), whose sum is σ = 5596802. Its totient is φ = 3610800.

The previous prime is 4513513. The next prime is 4513549. The reversal of 4513525 is 5253154.

It can be written as a sum of positive squares in 3 ways, for example, as 14884 + 4498641 = 122^2 + 2121^2 .

It is not a de Polignac number, because 4513525 - 2¹⁵ = 4480757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 180541 = 4513525 / (4 + 5 + 1 + 3 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4513525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90246 + ... + 90295.

Almost surely, 2^4513525 is an apocalyptic number.

It is an amenable number.

4513525 is a deficient number, since it is larger than the sum of its proper divisors (1083277).

4513525 is a wasteful number, since it uses less digits than its factorization.

4513525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180551 (or 180546 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 4513525 is about 2124.5058248920. The cubic root of 4513525 is about 165.2615991089.

Adding to 4513525 its reverse (5253154), we get a palindrome (9766679).

The spelling of 4513525 in words is "four million, five hundred thirteen thousand, five hundred twenty-five".