2215506 has 16 divisors (see below), whose sum is σ = 4515264. Its totient is φ = 724464.

The previous prime is 2215501. The next prime is 2215529. The reversal of 2215506 is 6055122.

It is not an unprimeable number, because it can be changed into a prime (2215501) 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, 3166 + ... + 3801.

It is an arithmetic number, because the mean of its divisors is an integer number (282204).

2^2215506 is an apocalyptic number.

2215506 is an abundant number, since it is smaller than the sum of its proper divisors (2299758).

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

2215506 is a wasteful number, since it uses less digits than its factorization.

2215506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2215506 is about 1488.4575909310. The cubic root of 2215506 is about 130.3639897681.

The spelling of 2215506 in words is "two million, two hundred fifteen thousand, five hundred six".