2220252449 has 4 divisors (see below), whose sum is σ = 2231522964. Its totient is φ = 2208981936.

The previous prime is 2220252443. The next prime is 2220252469. The reversal of 2220252449 is 9442520222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1114224400 + 1106028049 = 33380^2 + 33257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220252449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220252443) 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, 5634962 + ... + 5635355.

It is an arithmetic number, because the mean of its divisors is an integer number (557880741).

Almost surely, 2^2220252449 is an apocalyptic number.

It is an amenable number.

2220252449 is a deficient number, since it is larger than the sum of its proper divisors (11270515).

2220252449 is a wasteful number, since it uses less digits than its factorization.

2220252449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270514.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2220252449 is about 47119.5548472182. The cubic root of 2220252449 is about 1304.5701963382.

The spelling of 2220252449 in words is "two billion, two hundred twenty million, two hundred fifty-two thousand, four hundred forty-nine".