225206013 has 16 divisors (see below), whose sum is σ = 310262400. Its totient is φ = 145192896.

The previous prime is 225205991. The next prime is 225206027. The reversal of 225206013 is 310602522.

It is not a de Polignac number, because 225206013 - 2¹⁰ = 225204989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225206713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12463 + ... + 24611.

It is an arithmetic number, because the mean of its divisors is an integer number (19391400).

Almost surely, 2^225206013 is an apocalyptic number.

It is an amenable number.

225206013 is a deficient number, since it is larger than the sum of its proper divisors (85056387).

225206013 is a wasteful number, since it uses less digits than its factorization.

225206013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12356.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 225206013 is about 15006.8655288171. The cubic root of 225206013 is about 608.4057744387.

Adding to 225206013 its reverse (310602522), we get a palindrome (535808535).

The spelling of 225206013 in words is "two hundred twenty-five million, two hundred six thousand, thirteen".