225400013 has 2 divisors, whose sum is σ = 225400014. Its totient is φ = 225400012.

The previous prime is 225400009. The next prime is 225400027. The reversal of 225400013 is 310004522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175880644 + 49519369 = 13262^2 + 7037^2 .

It is a cyclic number.

It is not a de Polignac number, because 225400013 - 2² = 225400009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225399964 and 225400000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225400213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112700006 + 112700007.

It is an arithmetic number, because the mean of its divisors is an integer number (112700007).

Almost surely, 2^225400013 is an apocalyptic number.

It is an amenable number.

225400013 is a deficient number, since it is larger than the sum of its proper divisors (1).

225400013 is an equidigital number, since it uses as much as digits as its factorization.

225400013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 225400013 is about 15013.3278456177. The cubic root of 225400013 is about 608.5804246667.

Adding to 225400013 its reverse (310004522), we get a palindrome (535404535).

The spelling of 225400013 in words is "two hundred twenty-five million, four hundred thousand, thirteen".