5212209 has 4 divisors (see below), whose sum is σ = 6949616. Its totient is φ = 3474804.

The previous prime is 5212201. The next prime is 5212219. The reversal of 5212209 is 9022125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5212209 - 2³ = 5212201 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5212201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868699 + ... + 868704.

It is an arithmetic number, because the mean of its divisors is an integer number (1737404).

Almost surely, 2^5212209 is an apocalyptic number.

It is an amenable number.

5212209 is a deficient number, since it is larger than the sum of its proper divisors (1737407).

5212209 is a wasteful number, since it uses less digits than its factorization.

5212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737406.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 5212209 is about 2283.0262810577. The cubic root of 5212209 is about 173.3833037221.

The spelling of 5212209 in words is "five million, two hundred twelve thousand, two hundred nine".