2215516 has 12 divisors (see below), whose sum is σ = 3887632. Its totient is φ = 1104768.

The previous prime is 2215501. The next prime is 2215529. The reversal of 2215516 is 6155122.

2215516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2215516² = 9817022292512, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2² + 2¹⁸ + 1 + 5² + 5⁹ + 1 + 6³ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281 + ... + 3103.

2^2215516 is an apocalyptic number.

It is an amenable number.

2215516 is a deficient number, since it is larger than the sum of its proper divisors (1672116).

2215516 is a wasteful number, since it uses less digits than its factorization.

2215516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 2215516 is about 1488.4609501092. The cubic root of 2215516 is about 130.3641859065.

The spelling of 2215516 in words is "two million, two hundred fifteen thousand, five hundred sixteen".