2251449611 has 4 divisors (see below), whose sum is σ = 2256673824. Its totient is φ = 2246225400.

The previous prime is 2251449511. The next prime is 2251449619. The reversal of 2251449611 is 1169441522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251449611 - 2²⁶ = 2184340747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251449619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2611460 + ... + 2612321.

It is an arithmetic number, because the mean of its divisors is an integer number (564168456).

Almost surely, 2^2251449611 is an apocalyptic number.

2251449611 is a deficient number, since it is larger than the sum of its proper divisors (5224213).

2251449611 is an equidigital number, since it uses as much as digits as its factorization.

2251449611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224212.

The product of its digits is 17280, while the sum is 35.

The square root of 2251449611 is about 47449.4426837661. The cubic root of 2251449611 is about 1310.6520482134.

The spelling of 2251449611 in words is "two billion, two hundred fifty-one million, four hundred forty-nine thousand, six hundred eleven".