5224520421 has 48 divisors (see below), whose sum is σ = 8127475200. Its totient is φ = 3223898496.

The previous prime is 5224520377. The next prime is 5224520479. The reversal of 5224520421 is 1240254225.

It is not a de Polignac number, because 5224520421 - 2¹⁰ = 5224519397 is a prime.

It is a super-2 number, since 2×5224520421² = 54591227258892034482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5224520221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2436876 + ... + 2439018.

It is an arithmetic number, because the mean of its divisors is an integer number (169322400).

Almost surely, 2^5224520421 is an apocalyptic number.

It is an amenable number.

5224520421 is a deficient number, since it is larger than the sum of its proper divisors (2902954779).

5224520421 is a wasteful number, since it uses less digits than its factorization.

5224520421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 5224520421 is about 72280.8440805723. The cubic root of 5224520421 is about 1735.1970886794.

Adding to 5224520421 its reverse (1240254225), we get a palindrome (6464774646).

The spelling of 5224520421 in words is "five billion, two hundred twenty-four million, five hundred twenty thousand, four hundred twenty-one".