5223609 has 10 divisors (see below), whose sum is σ = 7803290. Its totient is φ = 3482352.

The previous prime is 5223601. The next prime is 5223611. The reversal of 5223609 is 9063225.

5223609 is a `hidden beast` number, since 52 + 2 + 3 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4665600 + 558009 = 2160^2 + 747^2 .

It is not a de Polignac number, because 5223609 - 2³ = 5223601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5223601) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32164 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (780329).

Almost surely, 2^5223609 is an apocalyptic number.

It is an amenable number.

5223609 is a deficient number, since it is larger than the sum of its proper divisors (2579681).

5223609 is an equidigital number, since it uses as much as digits as its factorization.

5223609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64501 (or 64492 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 5223609 is about 2285.5216034857. The cubic root of 5223609 is about 173.5096180723.

It can be divided in two parts, 5223 and 609, that added together give a cube (5832 = 18³).

The spelling of 5223609 in words is "five million, two hundred twenty-three thousand, six hundred nine".