366215225 has 6 divisors (see below), whose sum is σ = 454106910. Its totient is φ = 292972160.

The previous prime is 366215209. The next prime is 366215237. The reversal of 366215225 is 522512663.

It can be written as a sum of positive squares in 3 ways, for example, as 35557369 + 330657856 = 5963^2 + 18184^2 .

It is not a de Polignac number, because 366215225 - 2⁴ = 366215209 is a prime.

It is a super-2 number, since 2×366215225² = 268227182043601250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 366215191 and 366215200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7324280 + ... + 7324329.

It is an arithmetic number, because the mean of its divisors is an integer number (75684485).

Almost surely, 2^366215225 is an apocalyptic number.

It is an amenable number.

366215225 is a deficient number, since it is larger than the sum of its proper divisors (87891685).

366215225 is a wasteful number, since it uses less digits than its factorization.

366215225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14648619 (or 14648614 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 366215225 is about 19136.7506384966. The cubic root of 366215225 is about 715.4491936702.

Adding to 366215225 its reverse (522512663), we get a palindrome (888727888).

The spelling of 366215225 in words is "three hundred sixty-six million, two hundred fifteen thousand, two hundred twenty-five".