2229503561 has 4 divisors (see below), whose sum is σ = 2289760452. Its totient is φ = 2169246672.

The previous prime is 2229503537. The next prime is 2229503611. The reversal of 2229503561 is 1653059222.

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 1902617161 + 326886400 = 43619^2 + 18080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2229503561 is a prime.

It is a super-2 number, since 2×2229503561² = 9941372257023361442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2229503501) 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, 30128390 + ... + 30128463.

It is an arithmetic number, because the mean of its divisors is an integer number (572440113).

Almost surely, 2^2229503561 is an apocalyptic number.

It is an amenable number.

2229503561 is a deficient number, since it is larger than the sum of its proper divisors (60256891).

2229503561 is an equidigital number, since it uses as much as digits as its factorization.

2229503561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60256890.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2229503561 is about 47217.6191797088. The cubic root of 2229503561 is about 1306.3796004101.

The spelling of 2229503561 in words is "two billion, two hundred twenty-nine million, five hundred three thousand, five hundred sixty-one".