4221255543 has 16 divisors (see below), whose sum is σ = 5750857440. Its totient is φ = 2753214464.

The previous prime is 4221255541. The next prime is 4221255557. The reversal of 4221255543 is 3455521224.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4221255543 - 2¹ = 4221255541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221255541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18523 + ... + 93731.

It is an arithmetic number, because the mean of its divisors is an integer number (359428590).

Almost surely, 2^4221255543 is an apocalyptic number.

4221255543 is a deficient number, since it is larger than the sum of its proper divisors (1529601897).

4221255543 is a wasteful number, since it uses less digits than its factorization.

4221255543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75618.

The product of its digits is 48000, while the sum is 33.

The square root of 4221255543 is about 64971.1900999204. The cubic root of 4221255543 is about 1616.1458374035.

Adding to 4221255543 its reverse (3455521224), we get a palindrome (7676776767).

The spelling of 4221255543 in words is "four billion, two hundred twenty-one million, two hundred fifty-five thousand, five hundred forty-three".