2256615 has 12 divisors (see below), whose sum is σ = 3911544. Its totient is φ = 1203504.

The previous prime is 2256613. The next prime is 2256619. The reversal of 2256615 is 5166522.

It is not a de Polignac number, because 2256615 - 2¹ = 2256613 is a prime.

It is a super-2 number, since 2×2256615² = 10184622516450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25029 + ... + 25118.

It is an arithmetic number, because the mean of its divisors is an integer number (325962).

2^2256615 is an apocalyptic number.

2256615 is a deficient number, since it is larger than the sum of its proper divisors (1654929).

2256615 is a wasteful number, since it uses less digits than its factorization.

2256615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50158 (or 50155 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2256615 is about 1502.2033817030. The cubic root of 2256615 is about 131.1653603959.

The spelling of 2256615 in words is "two million, two hundred fifty-six thousand, six hundred fifteen".