5553509 has 12 divisors (see below), whose sum is σ = 6370596. Its totient is φ = 4822272.

The previous prime is 5553503. The next prime is 5553521. The reversal of 5553509 is 9053555.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 124609 + 5428900 = 353^2 + 2330^2 .

It is not a de Polignac number, because 5553509 - 2⁸ = 5553253 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5553503) 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 11 ways as a sum of consecutive naturals, for example, 1907 + ... + 3839.

It is an arithmetic number, because the mean of its divisors is an integer number (530883).

Almost surely, 2^5553509 is an apocalyptic number.

It is an amenable number.

5553509 is a deficient number, since it is larger than the sum of its proper divisors (817087).

5553509 is a wasteful number, since it uses less digits than its factorization.

5553509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 16875, while the sum is 32.

The square root of 5553509 is about 2356.5884239722. The cubic root of 5553509 is about 177.0880109614.

The spelling of 5553509 in words is "five million, five hundred fifty-three thousand, five hundred nine".