4521504 has 48 divisors (see below), whose sum is σ = 12785472. Its totient is φ = 1390848.

The previous prime is 4521427. The next prime is 4521509. The reversal of 4521504 is 4051254.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (4521509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (266364).

Almost surely, 2^4521504 is an apocalyptic number.

It is an amenable number.

4521504 is an abundant number, since it is smaller than the sum of its proper divisors (8263968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4521504 is a wasteful number, since it uses less digits than its factorization.

4521504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3641 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 4521504 is about 2126.3828441746. The cubic root of 4521504 is about 165.3589248165.

Adding to 4521504 its reverse (4051254), we get a palindrome (8572758).

The spelling of 4521504 in words is "four million, five hundred twenty-one thousand, five hundred four".