5211609 has 8 divisors (see below), whose sum is σ = 7483392. Its totient is φ = 3207120.

The previous prime is 5211607. The next prime is 5211623. The reversal of 5211609 is 9061125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5211609 - 2¹ = 5211607 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5211607) 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 7 ways as a sum of consecutive naturals, for example, 66777 + ... + 66854.

It is an arithmetic number, because the mean of its divisors is an integer number (935424).

Almost surely, 2^5211609 is an apocalyptic number.

It is an amenable number.

5211609 is a deficient number, since it is larger than the sum of its proper divisors (2271783).

5211609 is a wasteful number, since it uses less digits than its factorization.

5211609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133647.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 5211609 is about 2282.8948727438. The cubic root of 5211609 is about 173.3766504986.

The spelling of 5211609 in words is "five million, two hundred eleven thousand, six hundred nine".