5503405221 has 16 divisors (see below), whose sum is σ = 8251427520. Its totient is φ = 3624731280.

The previous prime is 5503405207. The next prime is 5503405241. The reversal of 5503405221 is 1225043055.

It is a happy number.

5503405221 is a `hidden beast` number, since 550 + 3 + 40 + 52 + 21 = 666.

It is not a de Polignac number, because 5503405221 - 2¹⁰ = 5503404197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5503405241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1225650 + ... + 1230131.

It is an arithmetic number, because the mean of its divisors is an integer number (515714220).

Almost surely, 2^5503405221 is an apocalyptic number.

It is an amenable number.

5503405221 is a deficient number, since it is larger than the sum of its proper divisors (2748022299).

5503405221 is a wasteful number, since it uses less digits than its factorization.

5503405221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455873 (or 2455867 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 5503405221 is about 74184.9393138526. The cubic root of 5503405221 is about 1765.5383839102.

Adding to 5503405221 its reverse (1225043055), we get a palindrome (6728448276).

The spelling of 5503405221 in words is "five billion, five hundred three million, four hundred five thousand, two hundred twenty-one".