2250881 has 4 divisors (see below), whose sum is σ = 2257200. Its totient is φ = 2244564.

The previous prime is 2250869. The next prime is 2250887. The reversal of 2250881 is 1880522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2250881 is a prime.

It is a super-2 number, since 2×2250881² = 10132930552322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2250881.

It is not an unprimeable number, because it can be changed into a prime (2250887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2591 + ... + 3348.

It is an arithmetic number, because the mean of its divisors is an integer number (564300).

2^2250881 is an apocalyptic number.

It is an amenable number.

2250881 is a deficient number, since it is larger than the sum of its proper divisors (6319).

2250881 is an equidigital number, since it uses as much as digits as its factorization.

2250881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2250881 is about 1500.2936379256. The cubic root of 2250881 is about 131.0541702429.

The spelling of 2250881 in words is "two million, two hundred fifty thousand, eight hundred eighty-one".