4520513 has 4 divisors (see below), whose sum is σ = 4666368. Its totient is φ = 4374660.

The previous prime is 4520497. The next prime is 4520519. The reversal of 4520513 is 3150254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4520513 - 2⁴ = 4520497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4520519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72881 + ... + 72942.

It is an arithmetic number, because the mean of its divisors is an integer number (1166592).

Almost surely, 2^4520513 is an apocalyptic number.

It is an amenable number.

4520513 is a deficient number, since it is larger than the sum of its proper divisors (145855).

4520513 is a wasteful number, since it uses less digits than its factorization.

4520513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145854.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4520513 is about 2126.1498065753. The cubic root of 4520513 is about 165.3468430941.

Adding to 4520513 its reverse (3150254), we get a palindrome (7670767).

The spelling of 4520513 in words is "four million, five hundred twenty thousand, five hundred thirteen".