5215666 has 8 divisors (see below), whose sum is σ = 7853184. Its totient is φ = 2597940.

The previous prime is 5215663. The next prime is 5215669. The reversal of 5215666 is 6665125.

It is an interprime number because it is at equal distance from previous prime (5215663) and next prime (5215669).

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

It is not an unprimeable number, because it can be changed into a prime (5215663) 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 3 ways as a sum of consecutive naturals, for example, 4270 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (981648).

Almost surely, 2^5215666 is an apocalyptic number.

5215666 is a deficient number, since it is larger than the sum of its proper divisors (2637518).

5215666 is a wasteful number, since it uses less digits than its factorization.

5215666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896.

The product of its digits is 10800, while the sum is 31.

The square root of 5215666 is about 2283.7832646729. The cubic root of 5215666 is about 173.4216274358.

The spelling of 5215666 in words is "five million, two hundred fifteen thousand, six hundred sixty-six".