5544232221 has 12 divisors (see below), whose sum is σ = 8125431776. Its totient is φ = 3360140520.

The previous prime is 5544232207. The next prime is 5544232223. The reversal of 5544232221 is 1222324455.

It is not a de Polignac number, because 5544232221 - 2¹⁰ = 5544231197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5544232223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7636321 + ... + 7637046.

Almost surely, 2^5544232221 is an apocalyptic number.

It is an amenable number.

5544232221 is a deficient number, since it is larger than the sum of its proper divisors (2581199555).

5544232221 is a wasteful number, since it uses less digits than its factorization.

5544232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15273392 (or 15273381 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 5544232221 is about 74459.6012680702. The cubic root of 5544232221 is about 1769.8935130165.

Adding to 5544232221 its reverse (1222324455), we get a palindrome (6766556676).

The spelling of 5544232221 in words is "five billion, five hundred forty-four million, two hundred thirty-two thousand, two hundred twenty-one".