5220453521 has 8 divisors (see below), whose sum is σ = 5281933800. Its totient is φ = 5159220480.

The previous prime is 5220453503. The next prime is 5220453527. The reversal of 5220453521 is 1253540225.

It can be written as a sum of positive squares in 4 ways, for example, as 1492740496 + 3727713025 = 38636^2 + 61055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5220453521 - 2⁶ = 5220453457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220453527) 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, 19160 + ... + 103961.

It is an arithmetic number, because the mean of its divisors is an integer number (660241725).

Almost surely, 2^5220453521 is an apocalyptic number.

It is an amenable number.

5220453521 is a deficient number, since it is larger than the sum of its proper divisors (61480279).

5220453521 is a wasteful number, since it uses less digits than its factorization.

5220453521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123619.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 5220453521 is about 72252.7059770082. The cubic root of 5220453521 is about 1734.7467312400.

Adding to 5220453521 its reverse (1253540225), we get a palindrome (6473993746).

The spelling of 5220453521 in words is "five billion, two hundred twenty million, four hundred fifty-three thousand, five hundred twenty-one".