225380017 has 4 divisors (see below), whose sum is σ = 226524276. Its totient is φ = 224235760.

The previous prime is 225380011. The next prime is 225380039. The reversal of 225380017 is 710083522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710083522 = 2 ⋅355041761.

It can be written as a sum of positive squares in 2 ways, for example, as 182817441 + 42562576 = 13521^2 + 6524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225380017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225380011) 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, 571834 + ... + 572227.

It is an arithmetic number, because the mean of its divisors is an integer number (56631069).

Almost surely, 2^225380017 is an apocalyptic number.

It is an amenable number.

225380017 is a deficient number, since it is larger than the sum of its proper divisors (1144259).

225380017 is a wasteful number, since it uses less digits than its factorization.

225380017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144258.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 225380017 is about 15012.6618892187. The cubic root of 225380017 is about 608.5624277230.

The spelling of 225380017 in words is "two hundred twenty-five million, three hundred eighty thousand, seventeen".