2249855 has 4 divisors (see below), whose sum is σ = 2699832. Its totient is φ = 1799880.

The previous prime is 2249827. The next prime is 2249861. The reversal of 2249855 is 5589422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5589422 = 2 ⋅2794711.

It is not a de Polignac number, because 2249855 - 2¹² = 2245759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224981 + ... + 224990.

It is an arithmetic number, because the mean of its divisors is an integer number (674958).

2^2249855 is an apocalyptic number.

2249855 is a deficient number, since it is larger than the sum of its proper divisors (449977).

2249855 is an equidigital number, since it uses as much as digits as its factorization.

2249855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449976.

The product of its digits is 28800, while the sum is 35.

The square root of 2249855 is about 1499.9516658879. The cubic root of 2249855 is about 131.0342547796.

The spelling of 2249855 in words is "two million, two hundred forty-nine thousand, eight hundred fifty-five".