4520000521 has 4 divisors (see below), whose sum is σ = 4522969872. Its totient is φ = 4517031172.

The previous prime is 4520000483. The next prime is 4520000533. The reversal of 4520000521 is 1250000254.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1250000254 = 2 ⋅625000127.

It is a cyclic number.

It is not a de Polignac number, because 4520000521 - 2¹¹ = 4519998473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4520000321) 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, 1482391 + ... + 1485436.

It is an arithmetic number, because the mean of its divisors is an integer number (1130742468).

Almost surely, 2^4520000521 is an apocalyptic number.

It is an amenable number.

4520000521 is a deficient number, since it is larger than the sum of its proper divisors (2969351).

4520000521 is a wasteful number, since it uses less digits than its factorization.

4520000521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969350.

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

The square root of 4520000521 is about 67230.9491305901. The cubic root of 4520000521 is about 1653.4059454168.

Adding to 4520000521 its reverse (1250000254), we get a palindrome (5770000775).

The spelling of 4520000521 in words is "four billion, five hundred twenty million, five hundred twenty-one", and thus it is an aban number.