5557209 has 16 divisors (see below), whose sum is σ = 8629632. Its totient is φ = 3115008.

The previous prime is 5557171. The next prime is 5557213. The reversal of 5557209 is 9027555.

It is not a de Polignac number, because 5557209 - 2¹² = 5553113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5557209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557229) 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, 1384 + ... + 3609.

It is an arithmetic number, because the mean of its divisors is an integer number (539352).

Almost surely, 2^5557209 is an apocalyptic number.

It is an amenable number.

5557209 is a deficient number, since it is larger than the sum of its proper divisors (3072423).

5557209 is a wasteful number, since it uses less digits than its factorization.

5557209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 5557209 is about 2357.3733263953. The cubic root of 5557209 is about 177.1273302567.

The spelling of 5557209 in words is "five million, five hundred fifty-seven thousand, two hundred nine".