5221420243 has 8 divisors (see below), whose sum is σ = 5625502736. Its totient is φ = 4817685600.

The previous prime is 5221420219. The next prime is 5221420249. The reversal of 5221420243 is 3420241225.

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

It is a de Polignac number, because none of the positive numbers 2^k-5221420243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5221420249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55353 + ... + 116218.

It is an arithmetic number, because the mean of its divisors is an integer number (703187842).

Almost surely, 2^5221420243 is an apocalyptic number.

5221420243 is a deficient number, since it is larger than the sum of its proper divisors (404082493).

5221420243 is a wasteful number, since it uses less digits than its factorization.

5221420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173925.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 5221420243 is about 72259.3955344217. The cubic root of 5221420243 is about 1734.8538045889.

Adding to 5221420243 its reverse (3420241225), we get a palindrome (8641661468).

The spelling of 5221420243 in words is "five billion, two hundred twenty-one million, four hundred twenty thousand, two hundred forty-three".