2256651 has 6 divisors (see below), whose sum is σ = 3259620. Its totient is φ = 1504428.

The previous prime is 2256637. The next prime is 2256673. The reversal of 2256651 is 1566522.

2256651 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 651 = 666.

2256651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2256651 - 2⁵ = 2256619 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 2²¹ + 5² + 6⁶ + 6⁶ + 5⁴ + 1 .

It is not an unprimeable number, because it can be changed into a prime (2256601) 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 5 ways as a sum of consecutive naturals, for example, 125361 + ... + 125378.

It is an arithmetic number, because the mean of its divisors is an integer number (543270).

2^2256651 is an apocalyptic number.

2256651 is a deficient number, since it is larger than the sum of its proper divisors (1002969).

2256651 is a wasteful number, since it uses less digits than its factorization.

2256651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250745 (or 250742 counting only the distinct ones).

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

The square root of 2256651 is about 1502.2153640540. The cubic root of 2256651 is about 131.1660578901.

The spelling of 2256651 in words is "two million, two hundred fifty-six thousand, six hundred fifty-one".