225325013 has 2 divisors, whose sum is σ = 225325014. Its totient is φ = 225325012.

The previous prime is 225324989. The next prime is 225325027. The reversal of 225325013 is 310523522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123254404 + 102070609 = 11102^2 + 10103^2 .

It is a cyclic number.

It is not a de Polignac number, because 225325013 - 2²² = 221130709 is a prime.

It is a super-2 number, since 2×225325013² = 101542722966900338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225325013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225325063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112662506 + 112662507.

It is an arithmetic number, because the mean of its divisors is an integer number (112662507).

Almost surely, 2^225325013 is an apocalyptic number.

It is an amenable number.

225325013 is a deficient number, since it is larger than the sum of its proper divisors (1).

225325013 is an equidigital number, since it uses as much as digits as its factorization.

225325013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 225325013 is about 15010.8298571398. The cubic root of 225325013 is about 608.5129171354.

Adding to 225325013 its reverse (310523522), we get a palindrome (535848535).

The spelling of 225325013 in words is "two hundred twenty-five million, three hundred twenty-five thousand, thirteen".