2256087 has 16 divisors (see below), whose sum is σ = 3290112. Its totient is φ = 1368960.

The previous prime is 2256073. The next prime is 2256097. The reversal of 2256087 is 7806522.

It is not a de Polignac number, because 2256087 - 2⁷ = 2255959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (205632).

2^2256087 is an apocalyptic number.

2256087 is a deficient number, since it is larger than the sum of its proper divisors (1034025).

2256087 is a wasteful number, since it uses less digits than its factorization.

2256087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2256087 is about 1502.0276295728. The cubic root of 2256087 is about 131.1551296281.

The spelling of 2256087 in words is "two million, two hundred fifty-six thousand, eighty-seven".