2256506 has 16 divisors (see below), whose sum is σ = 3913920. Its totient is φ = 955680.

The previous prime is 2256479. The next prime is 2256533. The reversal of 2256506 is 6056522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2256479) and next prime (2256533).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 2²¹ + 5⁷ + 6⁴ + 5⁷ + 0 + 6⁴ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (244620).

2^2256506 is an apocalyptic number.

2256506 is a deficient number, since it is larger than the sum of its proper divisors (1657414).

2256506 is a wasteful number, since it uses less digits than its factorization.

2256506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2256506 is about 1502.1671012241. The cubic root of 2256506 is about 131.1632484931.

The spelling of 2256506 in words is "two million, two hundred fifty-six thousand, five hundred six".