225200813 has 2 divisors, whose sum is σ = 225200814. Its totient is φ = 225200812.

The previous prime is 225200803. The next prime is 225200821. The reversal of 225200813 is 318002522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205148329 + 20052484 = 14323^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 225200813 - 2⁸ = 225200557 is a prime.

It is a super-3 number, since 3×225200813³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225200803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112600406 + 112600407.

It is an arithmetic number, because the mean of its divisors is an integer number (112600407).

Almost surely, 2^225200813 is an apocalyptic number.

It is an amenable number.

225200813 is a deficient number, since it is larger than the sum of its proper divisors (1).

225200813 is an equidigital number, since it uses as much as digits as its factorization.

225200813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225200813 is about 15006.6922737824. The cubic root of 225200813 is about 608.4010917124.

The spelling of 225200813 in words is "two hundred twenty-five million, two hundred thousand, eight hundred thirteen".