5665212 has 36 divisors (see below), whose sum is σ = 16366896. Its totient is φ = 1618560.

The previous prime is 5665193. The next prime is 5665213. The reversal of 5665212 is 2125665.

5665212 is a `hidden beast` number, since 5 + 6 + 652 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665213) 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, 10989 + ... + 11492.

It is an arithmetic number, because the mean of its divisors is an integer number (454636).

Almost surely, 2^5665212 is an apocalyptic number.

It is an amenable number.

5665212 is an abundant number, since it is smaller than the sum of its proper divisors (10701684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5665212 is a wasteful number, since it uses less digits than its factorization.

5665212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22498 (or 22493 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5665212 is about 2380.1705821222. The cubic root of 5665212 is about 178.2674513291.

It can be divided in two parts, 566 and 5212, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5665212 in words is "five million, six hundred sixty-five thousand, two hundred twelve".