4504521321 has 32 divisors (see below), whose sum is σ = 6853910400. Its totient is φ = 2922782400.

The previous prime is 4504521289. The next prime is 4504521337. The reversal of 4504521321 is 1231254054.

It is not a de Polignac number, because 4504521321 - 2⁵ = 4504521289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4504521341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146895 + ... + 174891.

It is an arithmetic number, because the mean of its divisors is an integer number (214184700).

Almost surely, 2^4504521321 is an apocalyptic number.

It is an amenable number.

4504521321 is a deficient number, since it is larger than the sum of its proper divisors (2349389079).

4504521321 is a wasteful number, since it uses less digits than its factorization.

4504521321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28166 (or 28160 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 4504521321 is about 67115.7308013554. The cubic root of 4504521321 is about 1651.5163679978.

Adding to 4504521321 its reverse (1231254054), we get a palindrome (5735775375).

It can be divided in two parts, 45045 and 21321, that added together give a palindrome (66366).

The spelling of 4504521321 in words is "four billion, five hundred four million, five hundred twenty-one thousand, three hundred twenty-one".