4521563 has 4 divisors (see below), whose sum is σ = 4759560. Its totient is φ = 4283568.

The previous prime is 4521557. The next prime is 4521599. The reversal of 4521563 is 3651254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3651254 = 2 ⋅1825627.

It is a cyclic number.

It is not a de Polignac number, because 4521563 - 2¹⁰ = 4520539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521523) 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, 118970 + ... + 119007.

It is an arithmetic number, because the mean of its divisors is an integer number (1189890).

Almost surely, 2^4521563 is an apocalyptic number.

4521563 is a deficient number, since it is larger than the sum of its proper divisors (237997).

4521563 is a wasteful number, since it uses less digits than its factorization.

4521563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237996.

The product of its digits is 3600, while the sum is 26.

The square root of 4521563 is about 2126.3967174542. The cubic root of 4521563 is about 165.3596440561.

The spelling of 4521563 in words is "four million, five hundred twenty-one thousand, five hundred sixty-three".