15052217 has 2 divisors, whose sum is σ = 15052218. Its totient is φ = 15052216.

The previous prime is 15052187. The next prime is 15052231. The reversal of 15052217 is 71225051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 4946176 = 3179^2 + 2224^2 .

It is an emirp because it is prime and its reverse (71225051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15052217 - 2²⁰ = 14003641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15052192 and 15052201.

It is not a weakly prime, because it can be changed into another prime (15052417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7526108 + 7526109.

It is an arithmetic number, because the mean of its divisors is an integer number (7526109).

Almost surely, 2^15052217 is an apocalyptic number.

It is an amenable number.

15052217 is a deficient number, since it is larger than the sum of its proper divisors (1).

15052217 is an equidigital number, since it uses as much as digits as its factorization.

15052217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 15052217 is about 3879.7186753681. The cubic root of 15052217 is about 246.9070497727.

Adding to 15052217 its reverse (71225051), we get a palindrome (86277268).

The spelling of 15052217 in words is "fifteen million, fifty-two thousand, two hundred seventeen".