2255807 has 4 divisors (see below), whose sum is σ = 2263800. Its totient is φ = 2247816.

The previous prime is 2255797. The next prime is 2255821. The reversal of 2255807 is 7085522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7085522 = 2 ⋅3542761.

It is a cyclic number.

It is not a de Polignac number, because 2255807 - 2⁸ = 2255551 is a prime.

It is a d-powerful number, because it can be written as 2 + 2 + 5⁷ + 5⁷ + 8⁷ + 0 + 7⁴ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2255807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3557 + ... + 4142.

It is an arithmetic number, because the mean of its divisors is an integer number (565950).

2^2255807 is an apocalyptic number.

2255807 is a deficient number, since it is larger than the sum of its proper divisors (7993).

2255807 is an equidigital number, since it uses as much as digits as its factorization.

2255807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2255807 is about 1501.9344193406. The cubic root of 2255807 is about 131.1497035732.

The spelling of 2255807 in words is "two million, two hundred fifty-five thousand, eight hundred seven".