5525333221 has 2 divisors, whose sum is σ = 5525333222. Its totient is φ = 5525333220.

The previous prime is 5525333197. The next prime is 5525333227. The reversal of 5525333221 is 1223335255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3586692321 + 1938640900 = 59889^2 + 44030^2 .

It is a cyclic number.

It is not a de Polignac number, because 5525333221 - 2²³ = 5516944613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5525333227) 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 as a sum of consecutive naturals, namely, 2762666610 + 2762666611.

It is an arithmetic number, because the mean of its divisors is an integer number (2762666611).

Almost surely, 2^5525333221 is an apocalyptic number.

It is an amenable number.

5525333221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5525333221 is an equidigital number, since it uses as much as digits as its factorization.

5525333221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 31.

The square root of 5525333221 is about 74332.5851898076. The cubic root of 5525333221 is about 1767.8801716329.

Adding to 5525333221 its reverse (1223335255), we get a palindrome (6748668476).

The spelling of 5525333221 in words is "five billion, five hundred twenty-five million, three hundred thirty-three thousand, two hundred twenty-one".