2272516549 has 4 divisors (see below), whose sum is σ = 2284052364. Its totient is φ = 2260980736.

The previous prime is 2272516529. The next prime is 2272516577. The reversal of 2272516549 is 9456152722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9456152722 = 2 ⋅4728076361.

It can be written as a sum of positive squares in 2 ways, for example, as 1090188324 + 1182328225 = 33018^2 + 34385^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272516549 - 2¹⁷ = 2272385477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272516529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5767612 + ... + 5768005.

It is an arithmetic number, because the mean of its divisors is an integer number (571013091).

Almost surely, 2^2272516549 is an apocalyptic number.

It is an amenable number.

2272516549 is a deficient number, since it is larger than the sum of its proper divisors (11535815).

2272516549 is a wasteful number, since it uses less digits than its factorization.

2272516549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11535814.

The product of its digits is 302400, while the sum is 43.

The square root of 2272516549 is about 47670.9193219514. The cubic root of 2272516549 is about 1314.7273114977.

The spelling of 2272516549 in words is "two billion, two hundred seventy-two million, five hundred sixteen thousand, five hundred forty-nine".