2216533 has 8 divisors (see below), whose sum is σ = 2523456. Its totient is φ = 1927200.

The previous prime is 2216519. The next prime is 2216551. The reversal of 2216533 is 3356122.

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

It is not a de Polignac number, because 2216533 - 2⁹ = 2216021 is a prime.

It is a Duffinian number.

2216533 is a lucky number.

It is a congruent number.

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, 4128 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (315432).

2^2216533 is an apocalyptic number.

2216533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2216533 is a deficient number, since it is larger than the sum of its proper divisors (306923).

2216533 is a wasteful number, since it uses less digits than its factorization.

2216533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795.

The product of its digits is 1080, while the sum is 22.

The square root of 2216533 is about 1488.8025389554. The cubic root of 2216533 is about 130.3841301085.

It can be divided in two parts, 22165 and 33, that multiplied together give a triangular number (731445 = T₁₂₀₉).

The spelling of 2216533 in words is "two million, two hundred sixteen thousand, five hundred thirty-three".