2251955 has 4 divisors (see below), whose sum is σ = 2702352. Its totient is φ = 1801560.

The previous prime is 2251943. The next prime is 2251957. The reversal of 2251955 is 5591522.

2251955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2251955 - 2⁶ = 2251891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251957) 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 3 ways as a sum of consecutive naturals, for example, 225191 + ... + 225200.

It is an arithmetic number, because the mean of its divisors is an integer number (675588).

2^2251955 is an apocalyptic number.

2251955 is a deficient number, since it is larger than the sum of its proper divisors (450397).

2251955 is an equidigital number, since it uses as much as digits as its factorization.

2251955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450396.

The product of its digits is 4500, while the sum is 29.

The square root of 2251955 is about 1500.6515251717. The cubic root of 2251955 is about 131.0750109416.

The spelling of 2251955 in words is "two million, two hundred fifty-one thousand, nine hundred fifty-five".