5535521 has 2 divisors, whose sum is σ = 5535522. Its totient is φ = 5535520.

The previous prime is 5535511. The next prime is 5535539. The reversal of 5535521 is 1255355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 1690000 = 1961^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 5535521 - 2⁶ = 5535457 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5535511) 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, 2767760 + 2767761.

It is an arithmetic number, because the mean of its divisors is an integer number (2767761).

Almost surely, 2^5535521 is an apocalyptic number.

It is an amenable number.

5535521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5535521 is an equidigital number, since it uses as much as digits as its factorization.

5535521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750, while the sum is 26.

The square root of 5535521 is about 2352.7687944207. The cubic root of 5535521 is about 176.8966061749.

The spelling of 5535521 in words is "five million, five hundred thirty-five thousand, five hundred twenty-one".