2216523 has 8 divisors (see below), whose sum is σ = 2977488. Its totient is φ = 1466624.

The previous prime is 2216519. The next prime is 2216551. The reversal of 2216523 is 3256122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216523 - 2² = 2216519 is a prime.

It is a d-powerful number, because it can be written as 2² + 2¹⁰ + 1 + 6³ + 5⁹ + 2¹⁸ + 3² .

It is a self number, because there is not a number n which added to its sum of digits gives 2216523.

It is not an unprimeable number, because it can be changed into a prime (2216563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 3107.

It is an arithmetic number, because the mean of its divisors is an integer number (372186).

2^2216523 is an apocalyptic number.

2216523 is a deficient number, since it is larger than the sum of its proper divisors (760965).

2216523 is a wasteful number, since it uses less digits than its factorization.

2216523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533.

The product of its digits is 720, while the sum is 21.

The square root of 2216523 is about 1488.7991805479. The cubic root of 2216523 is about 130.3839340301.

The spelling of 2216523 in words is "two million, two hundred sixteen thousand, five hundred twenty-three".