2261524217 has 2 divisors, whose sum is σ = 2261524218. Its totient is φ = 2261524216.

The previous prime is 2261524193. The next prime is 2261524253. The reversal of 2261524217 is 7124251622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1424232121 + 837292096 = 37739^2 + 28936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261524217 - 2¹⁰ = 2261523193 is a prime.

It is a super-3 number, since 3×2261524217³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2261524117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130762108 + 1130762109.

It is an arithmetic number, because the mean of its divisors is an integer number (1130762109).

Almost surely, 2^2261524217 is an apocalyptic number.

It is an amenable number.

2261524217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261524217 is an equidigital number, since it uses as much as digits as its factorization.

2261524217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 2261524217 is about 47555.4856667451. The cubic root of 2261524217 is about 1312.6040730415.

Adding to 2261524217 its reverse (7124251622), we get a palindrome (9385775839).

The spelling of 2261524217 in words is "two billion, two hundred sixty-one million, five hundred twenty-four thousand, two hundred seventeen".