5405221 has 2 divisors, whose sum is σ = 5405222. Its totient is φ = 5405220.

The previous prime is 5405189. The next prime is 5405233. The reversal of 5405221 is 1225045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5354596 + 50625 = 2314^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405221 - 2⁵ = 5405189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5405251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702610 + 2702611.

It is an arithmetic number, because the mean of its divisors is an integer number (2702611).

Almost surely, 2^5405221 is an apocalyptic number.

It is an amenable number.

5405221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405221 is an equidigital number, since it uses as much as digits as its factorization.

5405221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5405221 is about 2324.9131166562. The cubic root of 5405221 is about 175.4975879193.

The spelling of 5405221 in words is "five million, four hundred five thousand, two hundred twenty-one".