2056215 has 16 divisors (see below), whose sum is σ = 3760128. Its totient is φ = 939936.

The previous prime is 2056211. The next prime is 2056247. The reversal of 2056215 is 5126502.

It is not a de Polignac number, because 2056215 - 2² = 2056211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2056191 and 2056200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9687 + ... + 9896.

It is an arithmetic number, because the mean of its divisors is an integer number (235008).

2^2056215 is an apocalyptic number.

2056215 is a deficient number, since it is larger than the sum of its proper divisors (1703913).

2056215 is a wasteful number, since it uses less digits than its factorization.

2056215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19598.

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

The square root of 2056215 is about 1433.9508359773. The cubic root of 2056215 is about 127.1616558013.

The spelling of 2056215 in words is "two million, fifty-six thousand, two hundred fifteen".